Give Scaler the ability to draw by a rotation angle

Hello,

I believe that the Scaler is one of most helpful classes as far as drawing on multiple resolutions is concerned.
However, it is often needed to draw something by using the maDrawImageRegion in order to use the rotation angle.

I think it would be a good idea to implement that functionality to the scaler, or even better implement a draw function that takes as argument an arbitrary angle

Please consider it guys... Thank you very much