Adding a script event, changed(CHANGED_ANIMATION)

This is sent to all root prims of all attachments of an avatar when the
animation state changes. llGetAnimation() can thenbe used to find the
new movement animation. This eliminates the need for fast timers in AOs

OpenSim/Region/Framework/Interfaces/IScriptModule.cs

@@ -38,5 +38,6 @@ namespace OpenSim.Region.Framework.Interfaces
         string GetXMLState(UUID itemID);
 
         bool PostScriptEvent(UUID itemID, string name, Object[] args);
+        bool PostObjectEvent(UUID itemID, string name, Object[] args);
     }
 }