Ensure that decomposed plugins do not break
Ensure that decomposed plugins do not break

Commit 5d53dfb8d64186b5b1d2f356fbff8f222e15d1b2 removed the
method _get_tenant_id_for_create. This is used by various plugins
and the *aaS libaries.

Change-Id: I6d5e2555d6c198102a3d5400609f1d671e0d388d

sebrandon1/neutron,openstack/neutron,noironetworks/neutron,eayunstack/neutron,mahak/neutron,eayunstack/neutron,MaximNevrov/neutron,igor-toga/local-snat,noironetworks/neutron,MaximNevrov/neutron,dims/neutron,igor-toga/local-snat,wolverineav/neutron,huntxu/neutron,openstack/neutron,bigswitch/neutron,dims/neutron,sebrandon1/neutron,klmitch/neutron,openstack/neutron,klmitch/neutron,mahak/neutron,bigswitch/neutron,wolverineav/neutron,cloudbase/neutron,cloudbase/neutron,mahak/neutron,huntxu/neutron