add java ide site template (#3777)

etc/config/site-templates.conf

@@ -4,3 +4,4 @@ Diff of Two Compilers=https://godbolt.org/#z:OYLghAFBqd5QCxAYwPYBMCmBRdBLAF1QCcA
 Tree IDE Mode=https://godbolt.org/#z:OYLghAFBqd5QCxAFwE4FN0BoCWIIDGAtgIYDW6AgqsAM4gDkAtACIDCAspQNICiA%2BgCEAqgEkAMi34AVAJoAFXgFIAzCwBK6ADYB1HMgQt0AI1EA7AGYB7BlgJWiABxxb0qcSTPAAriWDpRABMQAiUAJkFwwTtvWmQHAHlvZEdkgDEXdDMSInQUBHR%2BdAAPdAJkkmNXLAtM%2Blh0QP0rVCCQADYazLaARgAWLtds3JBSHDMAOgJHRyxQBlscWnMCLW9AxsYABkXaDhJxgGUrb1QCPIYe3YTHLO3bLU9gNoWASiwIRubW4J7BgN%2BAFZ/sM8pxyOhxEtkLQJshisg5oxHKgrAArMrICC0BAkW60V5KLaUImUYgQ/hEcY4IjeIj8DAAR28OAwgQgADVeOpDqIEgA5ADUKgmgMJxNJJECgSKpXKyEqrmxuPxzJIGFJgq1gpxePQtAA9ARWat0FMZprtbr8QaMAQFV5XObHJatWNJtNHOKScSFTR0Mh%2BFpxmQgzhjKh1Th9cq9bQ1RridrBRYiMhAt7dis1htggwdrg9gczMdTud7oWbnd8w8nm1yRR3p8mvEfiAwv9ep1akMcnkMLQTmd9QaClotFY4QikQxSQAJbQTrCCgDuLS0gTAYFJpKYe6YpOkBUFvDMgVJWbMq3Wmxrhf2RyH5cu11uZgrjy89aiUSbX1bbQqJ2vwAJwgn2IA4JOnozpe165hWSwPiWT4XFclZvh%2BdZ5gwf4ti0bQDD2ALtls4EjFBEwILBhbZjeeYFkhxalsOjDoUsVbvnen7PDhrzvEs4IUPIqIYvaFZoiAfxmOgK4ZK4bRhD07xaIwgK2FxBZWIw0gYOggrhCo6HIPc/FYGQpGin0ADsIF9ICYRbICNl2c5WCqQwfQaRW2kLFg9BkSZNZNjAUChRASD2BsvD4aguD4MRoKjMWzo1FYZjIIcBAkK4UlEelyDCLQ6DyMUEkdO5TwhD%2BET%2BdomJQe%2BnxnmwVhrEQ75/FkgRQjJ/J0sYbggAAHFgjhWLQ%2BiNa17WdWNE1TelvXoP1RCDagI11a49qNYcfrIDNdJzcV23ILt%2B3Lat62bXE6oHW1R1Sf5F3jCtA1DcN7yDmWFyGeM8H6aobCpsgRotGaCCqMoEoSmEKj/TmgNhGElGQ8jO7EuMyCCu6ECvAZ1mREm2ogyAIAoljEDhGE8n6fYGVZDCIBKICbBmEohMcyw1PLv4gaBCQCp44SKhEyS1nc8SuHuWp3l3tp7qpUFOxNpFVjRbF8UQIlEFCZC0KwvCiLWBlWU5Xk/RpRlRUlWVd6SX8PEhKQFBbQ16X4N1h0dSA1lYN1l3vRtnTjZNZ3pd775%2B6Hi1mIHa1DZ0J3uyW%2B2R77bs7ele13fH11J2nD0%2B37t2oMgeeJ19qHIqJmKxvi3qkg2hRUmYNJ0gy6DMqyjSctyvICsKoqN8SUoyiUZQVFU6AQAYhQT/KiroK6gqUZ6K%2BK56I%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%2BBzniSoDYtQZJMpZWyshoSAbJN2Rkn0WSRm5LQL0wpgsSB43OQKuG3UqlXI8kwp%2BWBtJfN4e8AoUohp43MiAPow0Jh9HNRay1lrrleSwEQEAgIyIat8rYAKPDTIfHCuFNWThMhxSEfYX1rgNrAB6FsICPZkBuHoBAYwFZjDjHVAATzYrYQNuQMoJDMFoFNd4NikEdBcAsTQ7RnQAG76grAvZIaFFgMw8gWI%2BkZUBJtahsCsUr7UvneBYR4dAOTRhXJxVN3ypG/IkTbZB9sQBKKqugyItUj71CgElEGWAK0bQYNZJxuF3hWEcBY%2BgzBsmDPnVERygomAJBUJe3t8RXX1XUZ7FqWLoU9XxUNP4yKI6vu/ZY8l11sWPrsUSx6QHTquLLqi7FoGfYwbcQBz9VLnzGT0lJBh6qWEMGKMNdoTB2h9AKQQAggow0TBvRANgKjly6UwAZOGfxBStSDW4ejKgVCvFsDqrAeqNgbUNRZQEIpnLtC2CBECYQQJbGssNLYTigWMFtfavoWwrLDRUCp5y6nNOdGdYwV1IBAoergLAJAJwUjJCATAsdeUJ1yPKkBNAmAcC/CwCuSMjhU0Yduc/RgSQLPYysIynDeGCNEZI2RijzHnDBrYxxrjpldW1L4/gBhSn2ztAmD0Ho6mwjtGy7l/LHY9N%2BTdU8kziAQDVreUI9UdB5CeG0IcBAVgVwasDTFwWjUGsyS0M11rXF0Idb9SAUNPQOzDeDf5/rbWR0L2oHQVh%2BowGjk4VA/2co9pNC4rYBBPzbMIMnfI2wDtKpeGqiC6IS74AQFXWmddQ0t07rMvuw9jAmAnrUGeiIF6r03qYHemwWDgkvmettnrTWWuzdB05i2bmPNeeuZh%2BWjBeBymSC0QUIX8OEeAMR0jPQJhhEFJR6jgpaNIyMpx91wU0u2Htex8j7Hmcs5Z8wlHpXDM05Vu8QThPAQC8F0LwXnQPIqB85q/T3Pd1GtsmahyTkXL2UcoCUXjAwj06klsJ1WGEu0%2BuRr9ndy/LcY3ZND2fQgA%3D%3D%3D
 LLVM Ir=https://godbolt.org/#g:!((g:!((g:!((h:codeEditor,i:(filename:'1',fontScale:14,fontUsePx:'0',j:1,lang:c%2B%2B,selection:(endColumn:18,endLineNumber:6,positionColumn:18,positionLineNumber:6,selectionStartColumn:18,selectionStartLineNumber:6,startColumn:18,startLineNumber:6),source:'int+sum(int*+arr,+int+n)+%7B%0A++++int+value+%3D+0%3B%0A++++for(int+i+%3D+0%3B+i+%3C+n%3B+i%2B%2B)+%7B%0A++++++++value+%2B%3D+arr%5Bi%5D%3B%0A++++%7D%0A++++return+value%3B%0A%7D'),l:'5',n:'0',o:'C%2B%2B+source+%231',t:'0')),k:25.411059109631243,l:'4',n:'0',o:'',s:0,t:'0'),(g:!((h:ir,i:(compilerName:'x86-64+clang+14.0.0',editorid:1,fontScale:14,fontUsePx:'0',j:1,selection:(endColumn:1,endLineNumber:1,positionColumn:1,positionLineNumber:1,selectionStartColumn:1,selectionStartLineNumber:1,startColumn:1,startLineNumber:1),treeid:'1'),l:'5',n:'0',o:'LLVM+IR+Viewer+x86-64+clang+14.0.0+(Editor+%231,+Compiler+%231)',t:'0')),header:(),k:42.23569365874194,l:'4',n:'0',o:'',s:0,t:'0'),(g:!((h:compiler,i:(compiler:clang1400,filters:(b:'0',binary:'1',commentOnly:'0',demangle:'0',directives:'0',execute:'1',intel:'0',libraryCode:'0',trim:'1'),flagsViewOpen:'1',fontScale:14,fontUsePx:'0',j:1,lang:c%2B%2B,libs:!(),options:'-O3+-march%3Dskylake',selection:(endColumn:1,endLineNumber:1,positionColumn:1,positionLineNumber:1,selectionStartColumn:1,selectionStartLineNumber:1,startColumn:1,startLineNumber:1),source:1,tree:'1'),l:'5',n:'0',o:'x86-64+clang+14.0.0+(C%2B%2B,+Editor+%231,+Compiler+%231)',t:'0')),k:32.353247231626824,l:'4',n:'0',o:'',s:0,t:'0')),l:'2',n:'0',o:'',t:'0')),version:4
 Preprocessor=https://godbolt.org/#g:!((g:!((g:!((h:codeEditor,i:(filename:'1',fontScale:14,fontUsePx:'0',j:1,lang:c%2B%2B,selection:(endColumn:1,endLineNumber:6,positionColumn:1,positionLineNumber:6,selectionStartColumn:1,selectionStartLineNumber:6,startColumn:1,startLineNumber:6),source:'%23define+MUL(x,+y)+(x+*+y)+%0A%0Aint+mystery(int+a,+int+b)+%7B%0A++++return+MUL(a+%2B+b,+2)%3B%0A%7D%0A'),l:'5',n:'0',o:'C%2B%2B+source+%231',t:'0')),k:30.466941342614383,l:'4',n:'0',o:'',s:0,t:'0'),(g:!((h:pp,i:(clang-format:'1',editorid:1,filter-headers:'0',fontScale:14,fontUsePx:'0',j:1,treeid:'1'),l:'5',n:'0',o:'Preprocessor+Output+x86-64+clang+14.0.0+(Editor+%231,+Compiler+%231)',t:'0')),header:(),k:42.496476357000276,l:'4',n:'0',o:'',s:0,t:'0'),(g:!((h:compiler,i:(compiler:clang1400,filters:(b:'0',binary:'1',commentOnly:'0',demangle:'0',directives:'0',execute:'1',intel:'0',libraryCode:'0',trim:'1'),flagsViewOpen:'1',fontScale:14,fontUsePx:'0',j:1,lang:c%2B%2B,libs:!(),options:'',selection:(endColumn:1,endLineNumber:1,positionColumn:1,positionLineNumber:1,selectionStartColumn:1,selectionStartLineNumber:1,startColumn:1,startLineNumber:1),source:1,tree:'1'),l:'5',n:'0',o:'x86-64+clang+14.0.0+(C%2B%2B,+Editor+%231,+Compiler+%231)',t:'0')),k:27.036582300385337,l:'4',m:100,n:'0',o:'',s:0,t:'0')),l:'2',n:'0',o:'',t:'0')),version:4
+Java IDE=https://godbolt.org/#g:!((g:!((g:!((h:tree,i:(cmakeArgs:'',compilerLanguageId:java,customOutputFilename:'',files:!((editorId:1,fileId:1,filename:shapes/Square.java,g:'',isIncluded:'0',isMainSource:'1',isOpen:'0',langId:''),(editorId:2,fileId:2,filename:example.java,g:'package+myapp%3B%0A%0Apublic+class+example+%7B%0A%0A%7D',isIncluded:'0',isMainSource:'0',isOpen:'0',langId:java)),isCMakeProject:'1',j:1,newFileId:5),l:'5',n:'0',o:'Tree+%231',t:'0')),header:(),k:29.896907216494846,l:'4',n:'0',o:'',s:0,t:'0'),(g:!((g:!((h:codeEditor,i:(filename:shapes/Square.java,fontScale:14,fontUsePx:'0',j:1,lang:java,selection:(endColumn:1,endLineNumber:1,positionColumn:1,positionLineNumber:1,selectionStartColumn:1,selectionStartLineNumber:1,startColumn:1,startLineNumber:1),source:'package+shapes%3B%0A%0Apublic+class+Square+%7B%0A++++public+int+square(int+num)+%7B%0A++++++++return+num+*+num%3B%0A++++%7D%0A%7D%0A'),l:'5',n:'0',o:shapes/Square.java,t:'0'),(h:codeEditor,i:(filename:example.java,fontScale:14,fontUsePx:'0',j:2,lang:java,selection:(endColumn:1,endLineNumber:2,positionColumn:1,positionLineNumber:2,selectionStartColumn:1,selectionStartLineNumber:2,startColumn:1,startLineNumber:2),source:'import+shapes.*%3B%0A%0Aclass+Main+%7B%0A++++public+static+void+main(String%5B%5D+args)+%7B%0A++++++++Square+sq+%3D+new+Square()%3B%0A++++++++int+val+%3D+sq.square(args.length)%3B%0A++++++++System.out.println(%22Answer:+%22+%2B+Integer.toString(val))%3B%0A++++%7D%0A%7D'),l:'5',n:'0',o:example.java,t:'0')),k:80.08193737395916,l:'4',m:60.81932773109243,n:'0',o:'',s:1,t:'0'),(g:!((h:executor,i:(argsPanelShown:'0',compilationPanelShown:'1',compiler:java1601,compilerOutShown:'0',execArgs:'hello+world',execStdin:'',fontScale:14,fontUsePx:'0',j:1,lang:java,libs:!(),options:'',source:'1',stdinPanelShown:'1',tree:1,wrap:'1'),l:'5',n:'0',o:'Executor+jdk+16.0.1+(Java,+Tree+%231)',t:'0')),header:(),l:'4',m:39.18067226890757,n:'0',o:'',s:0,t:'0')),k:70.10309278350515,l:'3',n:'0',o:'',t:'0')),l:'2',n:'0',o:'',t:'0')),version:4