Add KinectManager Class

Add KinectManager Class for backup
User detection performance upgrade
Add user lost and tune

- Tune detect animation
- Tune max kinect range to 1.7 m
Detect nearest user in zone
Fix bug and upgrade detect performance

- fix bug in free state ( scan button setactive = false)
- change detect out to 1s (2 times)
- stand here animation play with idle scene