feat(Core/Scripting): move all script objects to separated files (#17860)

* feat(Core/Scripts): move all script objects to separated files

* Apply 5bfeabde81

* try gcc build

* again

src/server/game/Handlers/GroupHandler.cpp

@@ -18,6 +18,7 @@
 #include "DatabaseEnv.h"
 #include "Group.h"
 #include "GroupMgr.h"
+#include "LFGMgr.h"
 #include "Language.h"
 #include "Log.h"
 #include "MiscPackets.h"