show diff between pip installed packages and requirements
show diff between pip installed packages and requirements

This change will display the difference between which python packages pip
installed and the packages from the requirements lists.  It will print
the list of dependencies to the console (not including the directly declared
dependencies from the requirements list).

Closes-Bug: #1172417

Change-Id: I9363b50d6d7f5ef19c42bb2e30de45e352060ccd

redhat-openstack/pbr,JioCloud/pbr,WiFast/pbr,klmitch/pbr,varunarya10/pbr,JioCloud/pbr,redhat-openstack/pbr,klmitch/pbr,openstack-dev/pbr,openstack-dev/pbr,WiFast/pbr,varunarya10/pbr,openstack-dev/pbr