Throw a validation error if tickets with different currencies are attached to an event time.
Throw a validation error if tickets with different currencies are attached to an event time.

stephenmcm/silverstripe-eventmanagement,silverstripe-australia/silverstripe-eventmanagement,silverstripe-australia/silverstripe-eventmanagement,burnbright/silverstripe-eventmanagement,souldigital/silverstripe-eventmanagement,burnbright/silverstripe-eventmanagement,souldigital/silverstripe-eventmanagement,stephenmcm/silverstripe-eventmanagement,registripe/registripe-core