Added global hotkeys

Added global hotkeys for all cameras. Numeric keys on the numeric key pad must be used,

Windows Key + 0 (Home) = Camera 1 Home
Windows Key + 1-8 (Memory) = Camera 1, Memory position 1-8

Windows Key + Ctrl + 0 (Home) = Camera 2 Home
Windows Key + Ctrl + 1-8 (Memory) = Camera 2, Memory position 1-8

Windows Key + Alt + 0 (Home) = Camera 2 Home
Windows Key + Alt + 1-8 (Memory) = Camera 2, Memory position 1-8