enginefacade: 'instance_mapping'
enginefacade: 'instance_mapping'

Use enginefacade in 'instance_mapping' section.

Implements: blueprint new-oslodb-enginefacade

Co-Authored-By: Pavel Kholkin <pkholkin@mirantis.com>

Change-Id: I70a3a982c8f2c05fc49aefa0c25106e541c5b4a4

mahak/nova,jianghuaw/nova,apporc/nova,openstack/nova,rajalokan/nova,CEG-FYP-OpenStack/scheduler,CEG-FYP-OpenStack/scheduler,cloudbase/nova,rahulunair/nova,cyx1231st/nova,devendermishrajio/nova,NeCTAR-RC/nova,klmitch/nova,gooddata/openstack-nova,rajalokan/nova,gooddata/openstack-nova,cyx1231st/nova,rahulunair/nova,klmitch/nova,BeyondTheClouds/nova,gooddata/openstack-nova,mikalstill/nova,alaski/nova,jianghuaw/nova,Juniper/nova,bigswitch/nova,phenoxim/nova,sebrandon1/nova,mikalstill/nova,phenoxim/nova,zhimin711/nova,dims/nova,zhimin711/nova,alaski/nova,openstack/nova,dims/nova,mahak/nova,cloudbase/nova,vmturbo/nova,Juniper/nova,klmitch/nova,mikalstill/nova,Juniper/nova,vmturbo/nova,cernops/nova,openstack/nova,BeyondTheClouds/nova,hanlind/nova,jianghuaw/nova,mahak/nova,hanlind/nova,klmitch/nova,rajalokan/nova,rajalokan/nova,rahulunair/nova,cernops/nova,hanlind/nova,BeyondTheClouds/nova,sebrandon1/nova,jianghuaw/nova,NeCTAR-RC/nova,cloudbase/nova,vmturbo/nova,vmturbo/nova,devendermishrajio/nova,bigswitch/nova,sebrandon1/nova,apporc/nova,Juniper/nova,cernops/nova,gooddata/openstack-nova