Create a WASM distribution

[Downchuck]

Sure it's a wild one - but if it's accessible - we can get a very very large tsc.wasm out of this.

There are many llvm wasm builds out there, so it's not that crazy.

I'll send a flare if/when I've got a build.

[theoparis]

Maybe this PR would be useful: llvm/llvm-project#92677

[ASDAlexander77]

as I remember in the folder there are 2 files;
\TypeScriptCompiler\scripts\config_llvm_wasm_release.bat
\TypeScriptCompiler\scripts\build_llvm_wasm_release.bat

which should build WASM version but I never checked if it is working ok after it
and u need to have "emcc" to compile it