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/Maps/MapManager.cpp

@@ -22,6 +22,7 @@
 #include "ObjectAccessor.h"
 #include "ObjectMgr.h"
 #include "Opcodes.h"
+#include "ScriptMgr.h"
 #include "Player.h"
 #include "Transport.h"
 #include "World.h"
@@ -153,6 +154,9 @@ bool MapManager::CanPlayerEnter(uint32 mapid, Player* player, bool loginCheck)
 
     char const* mapName = entry->name[player->GetSession()->GetSessionDbcLocale()];
 
+    if (!sScriptMgr->CanEnterMap(player, entry, instance, mapDiff, loginCheck))
+        return false;
+
     Group* group = player->GetGroup();
     if (entry->IsRaid())
     {