feat format

[xav-ie]

Previous PR (merge this first pls!): #78

• test(update): test hover was outdated
• test(tokenPaste.vert): disable - not yet supported

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This PR:

• feat(--format): add subcommand
• test(--format): add cli tests

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Hello, I currently have repo-wide formatting setup and have been using clangd format for glsl files. Now that glsl_analyzer has formatting, my clangd cli formatter and glsl_analyzer LSP auto-formatter have different opinions on tabs. Gah! This is causing a lot of issues for me.

I would like to set this up to use from cli just like clangd allows. This means that I need a way to meet this formatter specification:
https://treefmt.com/latest/reference/formatter-spec/

Please accept my PR so I may format with this formatter!

I am happy to accept feedback and make changes.

I actually need to extend this functionality to eventually write to the file as well. I think that should be something like --format --write. Let me know your thoughts. I am used to prettier command that operates like this.

[nolanderc]

Thanks! Seems like a nice feature to have 😸