[7455] Implemented condition that player can be in 2 groups in 1 time - BG raid and normal group / raid. Author: Triply

Patch is tested, but can cause problems / unexpected behaviour.
    TODO: set raid leader of battleground raid to raid leader who entered BG
    TODO: when player leaves group, he is removed from GroupQueueInfo, and for him is created new GroupQueueInfo in normal queue.

    Signed-off-by: Triply <[email protected]>

--HG--
branch : trunk

src/game/Player.h

@@ -2166,6 +2166,13 @@ class TRINITY_DLL_SPEC Player : public Unit
         void SetAuraUpdateMaskForRaid(uint8 slot) { m_auraRaidUpdateMask |= (uint64(1) << slot); }
         Player* GetNextRandomRaidMember(float radius);
         PartyResult CanUninviteFromGroup() const;
+        // BattleGround Group System
+        void SetBattleGroundRaid(Group *group, int8 subgroup = -1);
+        void RemoveFromBattleGroundRaid();
+        Group * GetOriginalGroup() { return m_originalGroup.getTarget(); }
+        GroupReference& GetOriginalGroupRef() { return m_originalGroup; }
+        uint8 GetOriginalSubGroup() const { return m_originalGroup.getSubGroup(); }
+        void SetOriginalGroup(Group *group, int8 subgroup = -1);
 
         GridReference<Player> &GetGridRef() { return m_gridRef; }
         MapReference &GetMapRef() { return m_mapRef; }
@@ -2407,6 +2414,7 @@ class TRINITY_DLL_SPEC Player : public Unit
 
         // Groups
         GroupReference m_group;
+        GroupReference m_originalGroup;
         Group *m_groupInvite;
         uint32 m_groupUpdateMask;
         uint64 m_auraRaidUpdateMask;