Add job-template-delete to CLI

Change-Id: I3f22207148751b9f14dd862cfdf4c0d0eeca426c
Implements: blueprint python-savannaclient-cli
Add job-list to CLI

Change-Id: I6c79027c9a6513b1f4ec7824e8d5de0695f08374
Implements: blueprint python-savannaclient-cli