Add support for affine transformations to coronas
At support for affine transformations at corona level so that suers can choose between specifying an offset point and angle or specify more complex affine transformations. Both must be exclusive.
It would be wise to adapt the code such that the final paint method only works with affine transformations and that the offset in position, angle, etc are only calculated once when the corona is instantiated and then transformed into an affine transformation.
@vmaquil Would this be okay for you?