Fir checkin for Floodlight module loading system.

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

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

...va/net/floodlightcontroller/core/IFloodlightProvider.java

...ava/net/floodlightcontroller/core/IFloodlightService.java

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

...t/floodlightcontroller/core/internal/CmdLineSettings.java

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

...dlightcontroller/core/module/FloodlightModuleContext.java

...ightcontroller/core/module/FloodlightModuleException.java

...odlightcontroller/core/module/FloodlightModuleLoader.java

...t/floodlightcontroller/core/module/IFloodlightModule.java

...lightcontroller/core/module/IFloodlightModuleContext.java

...va/net/floodlightcontroller/core/web/CounterResource.java

.../floodlightcontroller/core/web/SwitchCounterResource.java

...a/net/floodlightcontroller/counter/ConcurrentCounter.java

...in/java/net/floodlightcontroller/counter/CountBuffer.java

...in/java/net/floodlightcontroller/counter/CountSeries.java

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

...ava/net/floodlightcontroller/counter/ICounterService.java

.../java/net/floodlightcontroller/counter/SimpleCounter.java