Ensemble cli subcommand for inspecting relation settings

[Kapil Thangavelu]

we need one of these to allow the admin to check service config values.

[Kapil Thangavelu (hazmat)]

probably should enable inspecting relation-settings as well ..

ensemble inspect service_name

 print service config data

ensemble inspect service_unit

 print all relation data, by relation

ensemble inspect service_unit relation_name

  print named relation data

[Clint Byrum (clint-fewbar)]

Note that there is bug #828326 for "config" settings, but relation settings and config settings are two very different things.