Build index of compiled parsers and add api for file-type resolution

[tmm1]

cc grantjenks/py-tree-sitter-languages#21 grantjenks/py-tree-sitter-languages#22

cc @amaanq @simonw @paul-gauthier @grantjenks

[amaanq]

Nice to see! Great timing too because I was thinking of adding more bindings upstream, I've added some for Go, C, and Swift here:
tree-sitter/tree-sitter#2438

I'd like Python and Zig too but I have limited experience in how packaging and that stuff works for those languages

[amaanq]

Ci seems to be outdated... rebase and it'll be fine now

[amaanq]

I've added upstream support for python bindings (kinda) in the linked PR, would be nice if you could check it out and provide some feedback

It exports the language function as tree_sitter_LANG.language() which just returns the raw const struct TSLanguage

[ObserverOfTime]

Closing this since we plan on removing build_library in the next version, in favour of pre-compiled wheels for languages, and language detection will not be particularly useful (if even feasible) at that point.