Add csharp stuff and merge after the rewrite

* Add csharp, boilerplate + minimal execution
    * Add initial parser
    * Frontend + wasm export of the tree sitter parser
    * Arg spread and use cache

backend/windmill-api/src/scripts.rs

@@ -583,6 +583,7 @@ async fn create_script_internal<'c>(
         || ns.language == ScriptLang::Deno
         || ns.language == ScriptLang::Rust
         || ns.language == ScriptLang::Ansible
+        || ns.language == ScriptLang::CSharp
         || ns.language == ScriptLang::Php)
     {
         Some(String::new())

backend/windmill-api/src/workspaces.rs

@@ -2364,6 +2364,7 @@ async fn tarball_workspace(
                 ScriptLang::Php => "php",
                 ScriptLang::Rust => "rs",
                 ScriptLang::Ansible => "playbook.yml",
+                ScriptLang::CSharp => "cs",
             };
             archive
                 .write_to_archive(&script.content, &format!("{}.{}", script.path, ext))