Performance Monitor Improvements:

1. Added command for runtime toggle
2. Changed where tick time is captured to properly capture per-tick statistics (matching cmangos playerbots)

src/RandomPlayerbotMgr.h

@@ -204,9 +204,8 @@ private:
     std::list<uint32> currentBots;
     uint32 bgBotsCount;
     uint32 playersLevel;
-    PerformanceMonitorOperation* totalPmo;
 };
 
 #define sRandomPlayerbotMgr RandomPlayerbotMgr::instance()
 
-#endif
+#endif