Added screen sharing based on D3D

[a3sroot]

Added screen sharing based on D3D In the old version, the personal branch has realized the automatic transmission of streams to cloud services.

[sempervictus]

Wow, this is what we need to get into meterpreter to replace our janky hookless (ancient, like predating Go IIRC) VNC impl. :smile: Only a small part of the way through the changes (not the biggest fan of Go, so a bit slower going), but this looks awesome.