Add olso.log into muranoclient's requirements.txt
Add olso.log into muranoclient's requirements.txt

olso.log is imported in the following files of muranoclient.
So the requirements.txt should include the olso.log.
    muranoclient\shell.py
    muranoclient\common\http.py
    muranoclient\common\utils.py
    muranoclient\openstack\common\apiclient\client.py
    muranoclient\v1\packages.py

Change-Id: Ic2f93158731095eaa89924210ef4700090638c9a
Closes-Bug: #1489277

openstack/python-muranoclient,openstack/python-muranoclient