Add BlockStorage0Config Resource

Add a BlockStorage0Config resource in the block-storage.yaml template.
This was missing previously and was causing the behavior of having all
block storage nodes only being created after all other nodes were up in
a deployment (I presume b/c of the wait conditions).

Also, we need the BlockStorage0Config resource so that we can get the
configuration of neutron-openvswitch-agent from the metadata, previously
the values in the file were unset, causing the service to fail to start.

Change-Id: I297de24079d1ece66d35213b4ef1f2c8c50e73f0
Add enable_tunneling to swift storage metadata

Add the enable_tunneling option to the neutron-openvswitch-agent
metadata for the swift storage template. If not preset, this option is
left blank in the openvswitch plugin configuration plugin. This causes
the service to fail to start because a blank value is not permissible
for a boolean option.

Change-Id: Ieadcdab295913121bd00dbd25e4245024bc2240f
Merge "Add BlockStorage0Config Resource"
Merge "Add enable_tunneling to swift storage metadata"