remove unused TEMP_VIEWING frame flag
make camera positioning relative to frame only

Conflicts:
	src/Camera.cpp
	src/Camera.h
	src/DeathView.cpp
	src/WorldViewCamera.cpp
expose camera frame, its needed for object projections

Conflicts:
	src/WorldView.cpp
move ship-specific positioning/orientation up into the controllers
restructure WorldViewCamera as CameraController. only Internal done so far

Conflicts:
	src/CameraController.cpp
	src/CameraController.h
	src/WorldView.cpp
convert external and sidereal cameras to controllers
allow a single body to be excluded from the camera draw