LinuxFlight Progress OrangePI PC

Testing barometer(MS5611) and compass (HMC5883L) with CleanFlight configurator.  The first trial will be with the OPC, then with the new OrangePI Zero.

Things to do:

• Need to add GPIO interrupt callback to sync the gryo
•  Merge GPS parser boost asio thread. 
• Add blackbox logging
• lttng logging to validate timing

Some progress, going to order quad-frame, moters,esc, etc.  Time it is all assembly board should be ready along with firmware. 

Any questions?