Core/Groups: Move all function definition from .h to .cpp

Core/Groups: Remove Group.h dependency from any .h file

--HG--
branch : trunk

src/server/game/Server/Protocol/Handlers/BattleGroundHandler.cpp

@@ -33,6 +33,7 @@
 #include "Object.h"
 #include "Opcodes.h"
 #include "DisableMgr.h"
+#include "Group.h"
 
 void WorldSession::HandleBattlemasterHelloOpcode(WorldPacket & recv_data)
 {

src/server/game/Server/Protocol/Handlers/LFGHandler.cpp

@@ -20,6 +20,7 @@
 #include "WorldPacket.h"
 #include "Player.h"
 #include "ObjectMgr.h"
+#include "Group.h"
 
 void BuildPlayerLockDungeonBlock(WorldPacket &data, LfgLockStatusSet* lockSet)
 {

src/server/game/Server/Protocol/Handlers/MiscHandler.cpp

@@ -49,6 +49,7 @@
 #include "InstanceScript.h"
 #include "LFGMgr.h"
 #include "GameObjectAI.h"
+#include "Group.h"
 
 void WorldSession::HandleRepopRequestOpcode(WorldPacket & recv_data)
 {

src/server/game/Server/Protocol/Handlers/PetHandler.cpp

@@ -29,6 +29,7 @@
 #include "Util.h"
 #include "Pet.h"
 #include "World.h"
+#include "Group.h"
 
 void WorldSession::HandleDismissCritter(WorldPacket &recv_data)
 {