Initial implementation for threaded sensors.
Mark thread safe methods.
There is no need to atomically set _threadIsRunning.

It's already protected by locks.
Fix indentation.
Remove incomplete declration of Mutex.
Added some vital includes.
First successfull build.
Added SensorManager class.
Not compiles at all!
Successfull build with MonkeyManager class.
Added newlines.
Constructors declaration moved to headers.
Converted tabs to spaces.
Refactor name of pipes path variables.
Correct initialisation of sensors.
Added poll() implementation.
First working build of multithreading sensor module driver.
Fixed negative sleep.
Fix headres.

Sort headers by name. Add pragma once to every header.
Ensure timestamps are positive. Reduce sleeping to half of the max interval.
Append last valid event if no new event arrive via pipe.