[5.7] Make PendingResourceRegistration macroable

[freekmurze]

By making PendingResourceRegistration macroable users can define their own helper methods when registering routes.

Here's an example of a macro definition

PendingResourceRegistration::macro('can', function(string $permission) {
   $this->middleware("can:{$permission}");
});

and it's usage:

Route::resource('users', UsersController::class)->can('administerUsers');