Improved tools/hacking.py
Improved tools/hacking.py

* cleaner output
* fix bug 980009
* Fix N201
* N306: alphabetical order imports
* N401: docstring start
* N402: one line docstring start
* N403: multi line docstring end
* Until fixed, N40* will be disabled by default

Change-Id: I9addafdaa7a1f8fb950e14a5409f661dec6c7b87

n0ano/ganttclient