Core/Achievements: AchievementMgr refactoring

* Extracted base CriteriaHandler class that deals with criteria only and will be reused for future scenario implementation
* Fixed players earning guild achievements

src/server/game/Entities/GameObject/GameObject.cpp

@@ -1736,7 +1736,7 @@ void GameObject::Use(Unit* user)
             Player* player = user->ToPlayer();
 
             player->SendLoot(GetGUID(), LOOT_FISHINGHOLE);
-            player->UpdateAchievementCriteria(ACHIEVEMENT_CRITERIA_TYPE_FISH_IN_GAMEOBJECT, GetGOInfo()->entry);
+            player->UpdateCriteria(CRITERIA_TYPE_FISH_IN_GAMEOBJECT, GetGOInfo()->entry);
             return;
         }