Core/Loot: Implemented personal loot and tag sharing for non-boss loot

Port From (https://github.com/TrinityCore/TrinityCore/commit/133334a902b705dae6f7e92bb1009b84cf1c51d2)

Source/Game/Entities/Player/Player.cs

@@ -3126,7 +3126,7 @@ namespace Game.Entities
 
         public bool IsAllowedToLoot(Creature creature)
         {
-            if (!creature.IsDead() || !creature.IsDamageEnoughForLootingAndReward())
+            if (!creature.IsDead())
                 return false;
 
             if (HasPendingBind())
@@ -3139,15 +3139,6 @@ namespace Game.Entities
             if (!loot.HasAllowedLooter(GetGUID()) || (!loot.HasItemForAll() && !loot.HasItemFor(this))) // no loot in creature for this player
                 return false;
 
-            if (loot.loot_type == LootType.Skinning)
-                return creature.GetLootRecipientGUID() == GetGUID();
-
-            Group thisGroup = GetGroup();
-            if (!thisGroup)
-                return this == creature.GetLootRecipient();
-            else if (thisGroup != creature.GetLootRecipientGroup())
-                return false;
-
             switch (loot.GetLootMethod())
             {
                 case LootMethod.PersonalLoot:// @todo implement personal loot (http://wow.gamepedia.com/Loot#Personal_Loot)