Feature Request: Add option to hide own look at beacon(from Alchemy)

Option is in System->Security & Privacy, at the top with the rest of the lookat options.

Syncs llhudeffectlookat with Alchemy

indra/newview/ascentprefssys.h

@@ -103,6 +103,7 @@ private:
 	bool mBroadcastViewerEffects;
 	bool mDisablePointAtAndBeam;
 	bool mPrivateLookAt;
+	bool mHideOwnLookAt;
 	bool mShowLookAt;
 	S32  mLookAtNames;
 	bool mLookAtLines;