First check-in for debug counters

...ava/net/floodlightcontroller/core/FloodlightProvider.java

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

...n/java/net/floodlightcontroller/counter/CounterStore.java

...a/net/floodlightcontroller/debugcounter/DebugCounter.java

...oodlightcontroller/debugcounter/IDebugCounterService.java

...t/floodlightcontroller/debugcounter/NullDebugCounter.java

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

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

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

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

src/main/resources/floodlightdefault.properties