Update mc3dslib.py

Author: Cracko298

mc3dslib.py

@@ -9,6 +9,9 @@ def make_dirs(self):
         os.makedirs(".\\mcworld_files\\resource_packs", exist_ok=True)
         os.makedirs(".\\mcworld_files\\behavior_packs", exist_ok=True)
 
+        open(".\\mcworld_files\\behavior_packs\\#KEEP_FOLDER",'wb+')
+        open(".\\mcworld_files\\resource_packs\\#KEEP_FOLDER",'wb+')
+
 class MC3DSBlangException(Exception):
     def __init__(self, message):
         super().__init__(message)