feat: Add support for loading tree-sitter-language grammars

[StratusFearMe21]

Hi!

I'd love to be able to use tree-house as a highlighter for a custom presentation language I'm working on, but I'm not able to without the ability to load tree-sitter grammars from Rust crates. This PR gives tree-house-bindings the ability to do that.

[the-mikedavis]

I was wondering what it would take to load grammars like the upstream bindings with tree-sitter-language. In Helix we stick to loading shared objects but I know that many tree-sitter apps use the crates and similar higher-level bindings. This is pretty slim, nice!

How does this look in your use-case? There aren't really any docs to speak of for tree-house yet but this is definitely something I want to document in the long-run so I'm curious how you would use these changes.

[StratusFearMe21]

This would be the syntax for loading a grammar

use tree_house_bindings::{Parser, Grammar};

let mut parser = Parser::new();
parser
    .set_grammar(Grammar::try_from(tree_sitter_grz::LANGUAGE).unwrap())
    .unwrap();

From there it would just work like normal

[StratusFearMe21]

My main use-case for tree-house right now is for syntax highlighting errors within my presentation language here and using the API via my language's language server which links to helix-lsp and helix-lsp-types which provides a conveniant API for converting language server edits to transactions which can be applied to a Rope.

And since I use the original tree-sitter crate for the actual parsing of the language, I would ideally replace that with tree-house-bindings to not have to have two tree-sitter bindings within the same project