Feat: Implemented CLI

[qwertydelle]

Implemented a basic CLI, for now, that can compile any file with svelte syntax and a directory of files(has to end with either .svelte or .rustle).

[qwertydelle]

I also need suggestions on how to improve the CLI, especially when compiling a whole directory feel free to make changes as needed.

[qwertydelle]

@pintariching I think cargo.lock should be added to .gitignore

[pintariching]

I've read that cargo.lock should be ignored for libraries but used for binaries, so that when you build it, it uses the same version libraries as it did on your computer.

[qwertydelle]

Maybe I am doing something wrong but it causes some problems when building for me

[pintariching]

It could be that some library version mismatch, maybe serde_json that is used in both projects?

[qwertydelle]

Could be anyway gonna push a new commit that hopefully fixes it

[qwertydelle]

@pintariching Aight changed the .gitignore file

[pintariching]

Ok this seems great! I'll merge it.