Massage Actor entry point functions

[Kenix3]

Structs to rename

• GameState -> Game
• GlobalContext -> GamePlay

Variable names for Game will be game where possible.
Variable names for GamePlay will be play where possible.

Actor this variables will be renamed to self. These are the derived class actor structs.
Actor thisx variables will be called super or maybe actor. These are the based class actor structs.

Actor constructor/destructor/update/draw methods will be changed to accept the Game base state rather than the GamePlay/GlobalContext derived class.