v2.2.0.1: Camera naming beta

Added

• Cameras can now be named & given a unique ID via the right-click part menu on any part with a HullCam supported camera in the VAB - stored in the craft file, no external config needed

Fixed

• Opening more than 4 viewer tabs no longer stalls - the status poll in the viewer now only starts after signal loss, eliminating the persistent per-tab connection that was saturating the browser's HTTP/1.1 connection pool
• WebM VINT encoding bitwise-or on sign-extended operand