Refactor the VIM to allow it to manage openstack and platform
services independently. The disable/enable/create/delete/
notify/query_host_services methods in nfvi_infrastrcture_api.py
are separated into the corresponding applicable plugin api to which
the constituent parts belong. Multiple tasks are created (where
applicable) to do the individual pieces of work corresponding to each
plugin.
Story: 2003910
Task: 27851
Change-Id: Ie86d293aa6a06dd3402fd75100fe7adf659af035
Signed-off-by: Kevin Smith <kevin.smith@windriver.com>