Clojure language support (#8146)

<img width="1405" height="474" alt="Clojure in Compiler Explorer 2"
src="https://github.com/user-attachments/assets/76dfed9b-d0eb-4764-b371-9c6023088a50"
/>

With Macro Expansion:
<img width="1642" height="594" alt="image"
src="https://github.com/user-attachments/assets/8b511af9-3617-426e-868d-5a99e5db5756"
/>

TODO
- [x] Language configuration
- [x] Compile via wrapper
  - Inject namespace if necessary to simplify minimal code sample
  - Parse Unix style command line parameters into compiler bindings
  - Place file in path according to namespace
- [x] Install some versions of Clojure [PR
here](https://github.com/compiler-explorer/infra/pull/1849)
- [x] Macroexpansion view (modeled on Rust macro expansion view)
- [x] Filter out command line options that would break wrapper operation
- [x] ~~Parse `--help` output to a list of options~~ Reverted because
not applicable.
- [x] Short form compiler options
- [x] Support Clojure compiler settings via env var, like
`JAVA_OPTS=-Dclojure.compiler.direct-linking=true
-Dclojure.compiler.elide-meta=[:doc,:file]`

NOT DOING
- [x] ~~Support loading dependencies~~ Non-trivial enhancement. Not
necessary for initial release.

---------

Co-authored-by: Matt Godbolt <matt@godbolt.org>

.github/labeler.yml

@@ -98,6 +98,12 @@
           - 'etc/config/clean.*.properties'
           - 'static/modes/clean-mode.ts'
 
+'lang-clojure':
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'lib/compilers/clojure.ts'
+          - 'etc/config/clojure.*.properties'
+
 'lang-cobol':
   - changed-files:
       - any-glob-to-any-file: