[7250] Use bg type ids enum insted raw values and catch some bugs in result for fixing.

* Replace max bg type checks by DBC valid index check
* Use in functions and fields BattlegroundTypeId type instead uint32
* Fixed wrong use bg queue ids instead bg type ids in queue update/remove function calls.
  Many bg have same raw values for type id and queue id but some can be affected by this bug:
  BATTLEGROUND_EY, BATTLEGROUND_SA, and all areans (with small arena/team size exceptions)
* Move Battlemaster to bg type ids map fron ObjectMgr to BatteleGroundMgr.
* Remobe redundent for header itself includes for BG headers.
* Use Auction location enum instead raw valus.

src/game/ArenaTeam.cpp

@@ -650,6 +650,19 @@ void ArenaTeam::FinishWeek()
     }
 }
 
+bool ArenaTeam::IsFighting() const
+{
+    for (MemberList::const_iterator itr = members.begin(); itr != members.end(); ++itr)
+    {
+        if (Player *p = objmgr.GetPlayer(itr->guid))
+        {
+            if (p->GetMap()->IsBattleArena())
+                return true;
+        }
+    }
+    return false;
+}
+
 /*
 arenateam fields (id from 2.3.3 client):
 1414 - arena team id 2v2