Rename Map::Add to Map::AddToMap, Map::Remove to Map::RemoveFromMap for better management.

src/server/game/Battlegrounds/Battleground.cpp

@@ -1454,7 +1454,7 @@ bool Battleground::AddObject(uint32 type, uint32 entry, float x, float y, float
     data.go_state       = 1;
 */
     // Add to world, so it can be later looked up from HashMapHolder
-    map->Add(go);
+    map->AddToMap(go);
     m_BgObjects[type] = go->GetGUID();
     return true;
 }
@@ -1521,7 +1521,7 @@ void Battleground::SpawnBGObject(uint32 type, uint32 respawntime)
                     // Change state from GO_JUST_DEACTIVATED to GO_READY in case battleground is starting again
                     obj->SetLootState(GO_READY);
             obj->SetRespawnTime(respawntime);
-            map->Add(obj);
+            map->AddToMap(obj);
         }
 }
 
@@ -1557,7 +1557,7 @@ Creature* Battleground::AddCreature(uint32 entry, uint32 type, uint32 teamval, f
     creature->SetSpeed(MOVE_WALK,  cinfo->speed_walk);
     creature->SetSpeed(MOVE_RUN,   cinfo->speed_run);
 
-    map->Add(creature);
+    map->AddToMap(creature);
     m_BgCreatures[type] = creature->GetGUID();
 
     if (respawntime)