Added clear functionality to cache

src/de/tudarmstadt/maki/simonstrator/api/component/vehicular/caching/CachingComponent.java

@@ -31,4 +31,6 @@ public interface CachingComponent extends HostComponent {
 	<T extends PointInformation> boolean containsEntry(T pCacheEntry);
 
 	<T extends PointInformation> void storeCacheEntry(T pCacheEntry);
+
+	void clear();
 }