Enable utf-8 support in schema transformer

To support utf-8 characters in resource name,
the default encoding needs to be changed to 'utf-8'
for schema transformer as well.

Change-Id: Iebf3344820519ef2ca3e8f5a72fa697ebc40e982
Partial-Bug: #1396894

src/config/schema-transformer/to_bgp.py

@@ -14,6 +14,8 @@
 from gevent import monkey
 monkey.patch_all()
 import sys
+reload(sys)
+sys.setdefaultencoding('UTF8')
 import requests
 import ConfigParser
 import cgitb