Core/Entities: Reworked guid scopes

* Added ObjectGuid traits to easily access whether guid type can be generated globally (ObjectMgr) or not
* This adds separate (per map) guid sequences depending on object type
* Ported map object container from cmangos/mangos-wotlk@a2d396eb0b
* Added type container visitor for TypeUnorderedMapContainer
* Implemented helper function to erase unique pairs from multimap containers
* Moved object storage of all objects except players and transports to map level
* Added containers linking database spawn id with creature/gameobject in world
* Renamed DBTableGuid to spawnId
* Added a separate spawn id sequence generator for creatures and gameobjects - this will be used in db tables
* Moved building SMSG_UPDATE_OBJECT - updatefields changes broadcast to map update

src/server/game/Entities/DynamicObject/DynamicObject.cpp

@@ -54,7 +54,7 @@ void DynamicObject::AddToWorld()
     ///- Register the dynamicObject for guid lookup and for caster
     if (!IsInWorld())
     {
-        sObjectAccessor->AddObject(this);
+        GetMap()->GetObjectsStore().Insert<DynamicObject>(GetGUID(), this);
         WorldObject::AddToWorld();
         BindToCaster();
     }
@@ -77,7 +77,7 @@ void DynamicObject::RemoveFromWorld()
 
         UnbindFromCaster();
         WorldObject::RemoveFromWorld();
-        sObjectAccessor->RemoveObject(this);
+        GetMap()->GetObjectsStore().Remove<DynamicObject>(GetGUID());
     }
 }