Core: Fixed non pch build (2)

src/server/game/Garrison/GarrisonMgr.cpp

@@ -16,6 +16,7 @@
  */
 
 #include "GarrisonMgr.h"
+#include "ObjectDefines.h"
 
 void GarrisonMgr::Initialize()
 {

src/server/game/Garrison/GarrisonMgr.h

@@ -18,6 +18,8 @@
 #ifndef GarrisonMgr_h__
 #define GarrisonMgr_h__
 
+#include <unordered_set>
+
 #include "DB2Stores.h"
 
 class GarrisonMgr