Speed up of particular inefficient part related to motions.

For these standard motions, the viewer likes to very frequently
flood-call startMotion/stopMotion sometimes, which at the very
least needs a LLUUID lookup in a std::map. In particular, this
is done for two of them for every avatar in the sim every frame.
This code makes it possible to test if that makes sense by
merely doing a bit test.

Conflicts:
	indra/llcharacter/llkeyframemotion.h

indra/llcharacter/llmotion.cpp

@@ -37,6 +37,7 @@
 
 #include "llmotion.h"
 #include "llcriticaldamp.h"
+#include "llmotioncontroller.h"
 
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
@@ -174,4 +175,19 @@ BOOL LLMotion::canDeprecate()
 	return TRUE;
 }
 
+//-----------------------------------------------------------------------------
+// AIMaskedMotion
+//-----------------------------------------------------------------------------
+
+BOOL AIMaskedMotion::onActivate()
+{
+	mController.activated(mMaskBit);
+	return TRUE;
+}
+
+void AIMaskedMotion::onDeactivate()
+{
+	mController.deactivated(mMaskBit);
+}
+
 // End