Changed namespace for game from ih to rs
Added CollisionChecker full of static functions. Not yet implemented

Signed-off-by: BunnyRabbit2 <iamlewisstorey@yahoo.com>
Implemented bits of collision checker. Two more functions to go

Signed-off-by: BunnyRabbit2 <iamlewisstorey@yahoo.com>
Few small changes here and there

Signed-off-by: BunnyRabbit2 <iamlewisstorey@yahoo.com>