Description of problem:

Implement a mechanism that is activated when creating a new virt-who configuration. This mechanism should be able to check if there is an existing virt-who configuration (which has been created earlier) that belongs to the same organization the new virt-who configuration is being created for, and if one is found, use the same 'rhsm_username' from the existing configuration in setting up the new configuration.

Justification:

Ensure that for all virt-who configurations that belong to the same organization, a single report is generated by virt-who and sent to Red Hat Satellite.