2028 custom service support

[maleck13]

Allow for consuming custom services as part of the mobile configuration. Covers both already provisioned services from the catalog and services that may already be running on OpenShift or externally. There are still some open questions but I would like feedback on the approach

[david-martin]

Neither approving or disproving at this time. Some questions in comments

[maleck13]

upstream discussion on dynamic params https://github.com/openshift/ansible-service-broker/issues/797

[maleck13]

@david-martin comfortable approving with clarifications?

[david-martin]

@maleck13 already approved :+1: :fireworks: :100: :1st_place_medal: