Gave file.py the ability to create directories (if they don't exist yet)

src/base/bt/file.py

@@ -21,6 +21,12 @@ def checkPath(path):
 	return os.path.exists(path)
 
 
+def mkdir(path):
+	if checkDir(path)==False:
+		write("Creating directory: "+path)
+		os.mkdir(path)
+
+
 def expandPath(path):
 	return os.path.expanduser(path)