Add Head Position Adviser stub.
Annotation: now it can set distancebetweenoutercanthus.
camera: add readCameraProfile function.
unify the is_number function in asmlib to is_number_asm.
incude annotation bundle into the face_tracker class.
A major code refactor: unifying the pupil center tracking & head pose estimation into ASMGazeTracking
rename the ASM_Pupil_Tracker to ASM_Gaze_Tracker
Merge branch 'master' into chrischensy