Support version check of nni (#807)

check nni version in trialkeeper, to make sure the version of trialkeeper is consistent with trainingService
add a debug mode in config file

tools/setup.py

 import setuptools
 
 setuptools.setup(
-    name = 'nnictl',
+    name = 'nni-tool',
     version = '999.0.0-developing',
     packages = setuptools.find_packages(exclude=['*test*']),