Replaced Watcher using Collection with a more fitting interface (#2693)

Replaced the watchers for energy, storage and crafting with a more fitting interface compared to a common collection.

Fixes #229

src/main/java/appeng/parts/reporting/AbstractPartMonitor.java

@@ -190,7 +190,7 @@ public abstract class AbstractPartMonitor extends AbstractPartDisplay implements
 	{
 		if( this.myWatcher != null )
 		{
-			this.myWatcher.clear();
+			this.myWatcher.reset();
 		}
 
 		try