[*] Updated SDK

cellframe-sdk @ 3cbb19cd

-Subproject commit 2d3cc18ea3eb01369aa95e5de4d926d27e694c10
+Subproject commit 3cbb19cd5483dfee7c1bb68bbe88027e2be9a282

dists/examples/1.Authority/MyAuthCA.py

 #!/usr/bin/python3
 from CellFrame import init, Cert, CryptoKeyType
-from string import Template
-import os
+# from string import Template
+# import os
 import sys
 import json
 import MyAuthConf
@@ -24,12 +24,13 @@ except json.decoder.JSONDecodeError as jex:
     exit(-1)
 
 
-
+# Produce random string
 def randomString(stringLength=10):
     """Generate a random string of fixed length """
     letters = string.ascii_lowercase
     return ''.join(random.choice(letters) for i in range(stringLength))
 
+
 # Action Help
 def help():
     print("CA managment script usage: ")