Milesight CMS V2.4.0.7-r2£¨Release Date: July 2nd, 2020£©

What's new:
1. Add People Counting function that support Real-time Occupancy and Statistics Report;
Note: please also upgrade the firmware of camera to the latest version.
40.7.0.74-r9 
https://drive.google.com/file/d/1_YfVrznSaV9bIqX0314Ea4kH_shxgvvm/view?usp=sharing
43.7.0.74-r9
https://drive.google.com/file/d/1PsJ7GvTYejFI8ltCQad9ujKE1jX4TUqE/view?usp=sharing

2. Fix some bugs;
