deviceDB initialized by ResourceDirectory
deviceDB initialized by ResourceDirectory
RD3interactor integrated

on deviceDB constructor all resources of RD are loaded.
integration of SmartSantanderEventBrokerClient
 in order to update deviceDB on add_sensor_node, remove_sensor_node events.
Added Key Value configuration pairs from RD , Events to DeviceConfig creation
minor edit
changes about adding a node etc.
Merge branch 'develop' into feature/devicedb-smartsantander-rd

Conflicts:
	device-db/pom.xml
Closes #258 (DeviceDB implementation for SmartSantander Resource Directory (RD))
Merge branch 'feature/devicedb-smartsantander-rd' into develop