ARTEMIS-6308 Core federation ignores max-hops and share-connection from broker.xml

[grepjava]

FileConfigurationParser.getAddressPolicy read the hops from an attribute named max-consumers, which the schema does not declare, so an address policy's max-hops was ignored and every address policy from broker.xml had maxHops = 0. It now reads max-hops.

getFederationStream never read the share-connection element the schema declares on upstreams and downstreams. It now passes it to the connection configuration.

Adds a parser test covering both, including the defaults when they are not set.

https://issues.apache.org/jira/browse/ARTEMIS-6308

[tabish121]

I would recommend you move to AMQP federation as Core federation is slated to be deprecated in the next major release