Fix Weffc++ warnings
- Add missing copy constructors and assignment operators .
- Hide the warning from FairMQStateMachine.h where it is produced by boost and/or is intended.
- Some code cleanup.
- rename functions of MQ examples and change directory structures
- move FairMQUnpacker.h from example/MQ/LmdSampler to base/MQ/devices
- add runSimpleMQStateMachine.h helper function in fairmq/tools