Add more conversion fields to schema

[bocekm]

The change follows up on the rh_cloud plugin sending more conversion facts to Insights (theforeman/foreman_rh_cloud#914).

[bocekm]

There's a couple of problems:

• The "activity" field used to be of type boolean. It was assigned this type under https://issues.redhat.com/browse/RHINENG-9420 even though the corresponding RHSM fact has values "conversion" or "analysis".
• The "success" field coming in from the rh_cloud plugin is of type string with values "true" or "false". It should have ideally be a boolean.
  • EDIT: Resolved by Cast success to boolean in inventory report theforeman/foreman_rh_cloud#925

[dippy-bot]

An error occurred while trying to parse the schema in this PR. Please verify the syntax and formatting, and see the pod logs for further details.