Add lightd 3rdlib build shell scripit

guowenxue

2021-01-12 d11af98fa65817962f3073d34d8a583d9b5ba211

 modules/python/sht20.py

old mode 100644
new mode 100755
@@ -1,4 +1,6 @@
#!/usr/bin/python
#-*- coding: utf-8 -*-

import fcntl
import time
import unittest