Support responsable on more objects

[taylorotwell]

Support Responsable on all response types + views so that the contract could potentially be used as an alternative to Response or mixed on controller stubs.

Reference: #46166

[ConsoleTVs]

Here's an example of multiple controller handlers this PR would allow:

use Illuminate\Contracts\Support\Responsable;

public function foo(): Responsable {
    return response('foo');
}

public function foo(): Responsable {
    return response()->json(['foo' => 'bar']);
}

public function foo(): Responsable {
    return redirect()->route('foo');
}

public function foo(): Responsable {
    return view('foo');
}

public function foo(User $user): Responsable {
    return new UserResource($user);
}

public function foo(): Responsable {
    return UserResource::collection(User::all());
}