[1LP][RFR] Add test_appliance_reporting_role for BZ 1629945

[tpapaioa]

This PR adds BZ test coverage for:

Bug 1629945 - Reports do not run when submitted through a UI which does not have reporting role on.
https://bugzilla.redhat.com/show_bug.cgi?id=1629945

The new test, test_appliance_reporting_role, configures a primary and secondary appliance pair, disables the Reporting role and then queues a report from the primary appliance's web UI, and verifies that the report is run successfully.

{{ pytest: -v --long-running -k test_appliance_reporting_role cfme/tests/distributed/test_appliance_replication.py }}

[dajoRH]

I detected some fixture changes in commit b8d6c5aae6794e70ae59a1a26beeae9f8c4c6aa1

The global fixture distributed_appliances is used in the following files:

• cfme/tests/distributed/test_appliance_replication.py
  • test_external_database_appliance
  • test_appliance_httpd_roles
  • test_appliance_reporting_role

The global fixture replicated_appliances is used in the following files:

• cfme/tests/distributed/test_appliance_replication.py
  • test_appliance_replicate_between_regions
  • test_appliance_replicate_database_disconnection
  • test_appliance_replicate_database_disconnection_with_backlog
  • test_replication_connect_to_vm_in_region
  • test_appliance_replicate_zones
  • test_appliance_replicate_remote_down

The global fixture replicated_appliances_preupdate was changed, but I didn't find where it's used.
The global fixture replicated_appliances_with_providers is used in the following files:

• cfme/tests/cli/test_appliance_console_db_restore.py

The global fixture replicated_appliances_preupdate_with_providers is used in the following files:

• cfme/tests/cli/test_appliance_update.py
  • test_update_replicated_webui

Please, consider creating a PRT run to make sure your fixture changes do not break existing usage 😃

[john-dupuy]

LGTM, thanks for this PR @tpapaioa