Add empty Desktop Duplication Grabber

Conflicts:
	Software/grab/grab.vcxproj
	Software/src/Prismatik.vcxproj
First ddupl implementation

Conflicts:
	Software/grab/grab.vcxproj
Implement screensWithWidgets and reallocate for DDuplGrabber

Conflicts:
	Software/grab/grab.vcxproj
Reorder DDuplGrabber implementation
Working DDuplImplementation
Properly free duplication data
Go to black while DDupl is not available
Fail gracefully if API is not available
Dynamically load dxgi and d3d11

Conflicts:
	Software/grab/grab.vcxproj
Add DDuplGrabber to project
Fix windows build (msvc)
Add msvc files to gitignore