TLS everywhere: Set post-save command for nova-vnc-proxy
TLS everywhere: Set post-save command for nova-vnc-proxy

The default command wasn't working, here we set one that will actually work.

The script additionally copies the certificates in the right place.

Related-Bug: #1811401
Depends-On: Ifacbee9e31d84be1008ab7545defac71cf65793f
Change-Id: Idc0844c8726aa53bc4cbd55f902248f854d2464f

openstack/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,dprince/tripleo-heat-templates