Change IHAListener. Prevent MASTER->SLAVE transition. BSC-3481

...a/net/floodlightcontroller/core/HAListenerTypeMarker.java

src/main/java/net/floodlightcontroller/core/IHAListener.java

...va/net/floodlightcontroller/core/internal/Controller.java

...tcontroller/devicemanager/internal/DeviceManagerImpl.java

...ntroller/linkdiscovery/internal/LinkDiscoveryManager.java

...ightcontroller/staticflowentry/StaticFlowEntryPusher.java

...va/net/floodlightcontroller/topology/TopologyManager.java

src/main/java/org/sdnplatform/sync/IStoreClient.java

...es/net.floodlightcontroller.core.module.IFloodlightModule

...ghtcontroller/core/module/FloodlightTestModuleLoader.java

...loodlightcontroller/core/test/MockFloodlightProvider.java

...troller/devicemanager/internal/DeviceManagerImplTest.java

...oodlightcontroller/learningswitch/LearningSwitchTest.java

...ller/linkdiscovery/internal/LinkDiscoveryManagerTest.java

...floodlightcontroller/staticflowentry/StaticFlowTests.java

...et/floodlightcontroller/topology/TopologyManagerTest.java