[9.x] Extend eloquent higher order proxy properties

[mikeydevelops]

Hello,

Pull requests #41096 and #41296 added the ability to negate query conditions, primarily negating closures of conditions or in other words: scopes.

I remembered there was a nice way of changing the boolean of model scopes from and to or using the HigherOrderBuilderProxy.
I decided to add an easy way to add proxied properties and for starters in addition to the orWhere method I also added the methods whereNot and orWhereNot to be proxied.

I have also added tests.

This is what is changed in terms of coding and syntactic sugar.

Before you would write:

Model::query()->whereNot(function (Builder $query) {
    $query->someScope();
});

Model::query()->orWhereNot(function (Builder $query) {
    $query->someOtherScope();
});

Now you can use:

Model::query()->whereNot->someScope();

Model::query()->orWhereNot->someOtherScope();

I think this is quite nice looking code.