refactor(Core): Rename ...Manager to ...Mgr (#6910)

* Rename MapManager.h to MapMgr.h

* Rename BanManager.h to BanMgr.h

* Rename MapManager.cpp to MapMgr.cpp

* Rename BanManager.cpp to BanMgr.cpp

* Rename MapRefManager.h to MapRefMgr.h

* Rename ThreatManager.h to ThreatMgr.h

* Rename GridRefManager.h to GridRefMgr.h

* Rename ThreatManager.cpp to ThreatMgr.cpp

* Rename GroupRefManager.h to GroupRefMgr.h

* Rename HostileRefManager.h to HostileRefMgr.h

* Rename HostileRefManager.cpp to HostileRefMgr.cpp

* Rename MMapManager.h to MMapMgr.h

* Rename FollowerRefManager.h to FollowerRefMgr.h

* Rename VMapManager2.h to VMapMgr2.h

* Rename IVMapManager.h to IVMapMgr.h

* Rename MMapManager.cpp to MMapMgr.cpp

* Rename VMapManager2.cpp to VMapMgr2.cpp

* Rename RefManager.h to RefMgr.h

* Rename WaypointManager.h to WaypointMgr.h

* Rename WaypointManager.cpp to WaypointMgr.cpp

* Rename MPQManager.h to MPQMgr.h

* Rename MPQManager.cpp to MPQMgr.cpp

* Rename IMMAPManager.h to IMMAPMgr.h

* fix build

* Update Main.cpp

* chore(Core/Misc): Remove toxic language

* Revert "chore(Core/Misc): Remove toxic language"

* fix build

* build

src/server/worldserver/Main.cpp

@@ -25,7 +25,7 @@
 #include "DeadlineTimer.h"
 #include "GitRevision.h"
 #include "IoContext.h"
-#include "MapManager.h"
+#include "MapMgr.h"
 #include "MySQLThreading.h"
 #include "ObjectAccessor.h"
 #include "OpenSSLCrypto.h"
@@ -296,7 +296,7 @@ int main(int argc, char** argv)
         // unload battleground templates before different singletons destroyed
         sBattlegroundMgr->DeleteAllBattlegrounds();
 
-        sOutdoorPvPMgr->Die();                     // unload it before MapManager
+        sOutdoorPvPMgr->Die();                     // unload it before MapMgr
         sMapMgr->UnloadAll();                      // unload all grids (including locked in memory)
 
 #ifdef ELUNA