Windows Implementation Update

Cleaned up more of the windows implementation

Added separate callbacks for users who want the Entire Screen, or just the Deltas.

Windows Implementation

Directx screen capture is now nearly optimal
GDI Screen capture is implemented as well

Todo:
GDI screen deltas. Currently the entire screen is sent each frame capture
Directx remove redundant/overlapping screen deltas

Windows Desktop Duplication support

Added support for windows desktop duplication