feat(Core/Hooks): added collection of hooks to extends AC (#3047)

This collection of hooks comes from the Maelstrom project. It allows to release modules such as :
- 3v3-soloqueue
- 1v1 arena
- pvestats

and many others

src/server/game/Handlers/BattleGroundHandler.cpp

@@ -388,6 +388,9 @@ void WorldSession::HandleBattleFieldPortOpcode(WorldPacket& recvData)
     BattlegroundQueueTypeId bgQueueTypeId = BattlegroundMgr::BGQueueTypeId(bgTypeId, arenaType);
     BattlegroundQueue& bgQueue = sBattlegroundMgr->GetBattlegroundQueue(bgQueueTypeId);
 
+    if (!sScriptMgr->CanBattleFieldPort(_player, arenaType, bgTypeId, action))
+        return;
+
     // get group info from queue
     GroupQueueInfo ginfo;
     if (!bgQueue.GetPlayerGroupInfoData(_player->GetGUID(), &ginfo))
@@ -658,6 +661,14 @@ void WorldSession::HandleBattlemasterJoinArena(WorldPacket& recvData)
     // queue result (default ok)
     GroupJoinBattlegroundResult err = GroupJoinBattlegroundResult(bgt->GetBgTypeID());
 
+    if (!sScriptMgr->CanJoinInArenaQueue(_player, guid, arenaslot, bgTypeId, asGroup, isRated, err) && err <= 0)
+    {
+        WorldPacket data;
+        sBattlegroundMgr->BuildGroupJoinedBattlegroundPacket(&data, err);
+        SendPacket(&data);
+        return;
+    }
+
     // check if player can queue:
     if (!asGroup)
     {