Add ability to pass additional setters to Forge::newInstance(), Container::newInstance() and Container::lazyNew()

[kenaniah]

The factory should accept an additional argument that would allow for additional setters to be passed to an object after construction.

The api should look something like Forge::newInstance($class, array $params = [], array $setters = []). The setters then applied to the $class instance after construction should be the combination of the setters found in the Config object along with the setters defined in the $setters parameter.

[pmjones]

Merged pull request; closing the ticket. Thanks!