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/scripts/EasternKingdoms/TheStockade/instance_the_stockade.cpp

@@ -15,8 +15,8 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "InstanceMapScript.h"
 #include "InstanceScript.h"
-#include "ScriptMgr.h"
 
 class instance_the_stockade : public InstanceMapScript
 {