Add scope parameters to the repository and docblock generator

[N1ebieski]

Before:

After:

This feature needs more testing, especially in large projects with many scope methods using union/intersect type parameters.

[TitasGailius]

I pushed a few changes to this PR.

The main remaining bit I'm not 100% sure about is how we should generate docblocks for parameters with new … default values, e.g.:

#[Scope]
public function withObject(Builder $query, Stringable $stringable = new Stringable(''))
{
    //
}

Ideally, we'd emit something like:

/**
 * withObject(\Illuminate\Support\Stringable $stringable = new \Illuminate\Support\Stringable(''))
 */

…but doing that accurately would require parsing the source text which I'd rather avoid for now.

So the current implementation generates:

/**
 * withObject(\Illuminate\Support\Stringable $stringable = new \Illuminate\Support\Stringable(...))
 */

Alternatively, we could drop the (...) entirely:

/**
 * withObject(\Illuminate\Support\Stringable $stringable = new \Illuminate\Support\Stringable)
 */

Aside from that, I think this is good to go.

[N1ebieski]

@TitasGailius I suggest the option without (...) because this:

[TitasGailius]

@N1ebieski both options show the same thing in VS Code, because I think docblocks like this aren't properly supported yet. That said, I agree that omitting (...) makes more sense since that's valid PHP syntax, whereas the other option would be invalid in PHP.

[N1ebieski]

@TitasGailius Without new looks decent...