Support for autocompletion component attributes in blade files

[N1ebieski]

Related with #32

This PR adds support for autocompletion component attributes:

Currently, works only with class components. To make it work with properties from the @props directive, needs #367

Works with livewire components:

Depends on #351 and currently is highly experimental so needs much more testing, especially with big documents with many complicated components.

[TitasGailius]

Thanks for the PR @N1ebieski!

I'm going to close this one out for now since, as mentioned, the plan is to handle the @props parsing logic within the vs-code-php-parser-cli package instead of doing it here. It feels like a much cleaner approach in the long run.

Thanks again for the effort!