Implement helper functions balanced_wait_until and balanced_awaken
They include new path for Windows 8.1+ (WaitOnAddress)
shared_mutex, cond_variable, cond_one, cond_x16 modified to use it
Added helper function utils::popcnt16
Replace most semaphore<> with shared_mutex
* [sysutil] Add Magnetometer system param
* [ui] Add UI for Move handler
Current options are "Null" and "Fake".
* cellGem: Improvements
* cellCamera: Improvements