Add verbose options for Config Ref generation tool
Add verbose options for Config Ref generation tool

  Add verbose option to pass autohelp.py from autohelp-wrapper
  You shoud use like
    autohelp-wrapper -v 1 update neutron
    autohelp-wrapper -v 2 update neutron

Change-Id: I5a22905ba357805faf850456e5e8f5e959c6ce2c
Closes-Bug: #1504389

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