durable subscriptions: templates and configuration

Define plan(s) for subscription types with addressType 'subscription'.

The broker.xml for sharded-topics should be edited. The qualified
topic and associated divert can also be removed. Connectors should be
defined to both the agent and the router network, using the hostname
as the container id.

There would also be no need for the colocated router in sharded topic
deployments, so the relevant 'templates' should be edited to remove
it.

Also need to disable durable subscriptions in the router config (ALLOW_DURABLE_SUBSCRIPTIONS="false")