Reconciliation framework binding point improvements

Reconciliation framework binding point improvements

- added tests for mastership service manager
- removed factory managed instantiated direct thought blueprint service
- reconciliation framework returns registration, can be closed directly
- hide explicit unregister method from manager to prevent confuse the consumer
- exception thrown after second reconciliation framework try to register
- reconciliation framework doesn't need register mastership service for disconnect
- added new event for device disconnect into reconciliation framework events

Change-Id: I19f7fdd528e453388f69c34e3669488d4d52644b
Signed-off-by: Jozef Bacigal <jozef.bacigal@pantheon.tech>