Need game.add() helper method

[jessefreeman]

Flixel had a helper method called add() which quickly allowed you to add sprites to the world without having to talk to the world directly. Currently there are a bunch of create helper methods but no simple way to add something created manually such as custom sprites.

[photonstorm]

This is now available via the GameObjectFactory. It's not quite as concise as add(), but not far off and much easier than dealing with the world directly.