autohelp: lookup options in more oslo libraries
autohelp: lookup options in more oslo libraries

Change-Id: I24942de43dbe04256f511ee372f203942f555cce

savinash47/openstack-doc-tools,savinash47/openstack-doc-tools,openstack/openstack-doc-tools,savinash47/openstack-doc-tools,openstack/openstack-doc-tools