Webcam-based viewport control

Using a webcam to (loosely) control the perspective viewport in Rhino. This relies heavily on Andy Payne's new vision components in Firefly and also uses Yiannis Chatzikonstantinou's Hoopsnake and the camera control components from Hiroshi Jacobs's Chameleon. The credit for making this possible really goes to them.

Excuse the getup. Until I get money for fancy cameras and Kinects, I'll just have to make do with strapping webcams to my head. =)