Support ServiceBinding 0.5.0+

Description

APPSVC-809 introduced a change in ServiceBinding group API name. The name will be in use from version 0.5.0 that is about to be released in this sprint (APPSVC-830).

As a user, I would like to continue binding services from the console.

Although this is officially a breaking API change, the fact that we changed only API group name, makes it possible to support both the current API group (operators.coreos.com) and the new one (binding.operators.coreos.com). The console can check what service binding CRD is available in the cluster, and based on that use the appropriate group name in its requests.

Acceptance Criteria

1. support service binding operator both in 0.4.0 and 0.5.0 versions