These additions will allow us to filter nodes
by node uuid and id. This filter API is used
in many places throughout the code base. It is
natural to expect that this API would allow us to
filter by node id and uuid in addtion to the other
supported parameters. This also fixes a 3 year old bug.
This change from lucasagomes has a bug:
https://review.openstack.org/#/c/197141/
In conductor/manager.py, he calls _fail_if_in_state()
and uses the node_id as a filter. However this filter
effectively does nothing because sqalchemy does not
know how to filter by node id on the backend. My changes
fix this problem and make the API more intuitive
Closes-Bug: #1749755
Change-Id: I4efc0d5cd5d5d6108a334f954e1718203b47da0a