configureDataCaptureProfile method of the RTRDataCaptureService protocol
Creates a profile builder object with which you will be able to configure the data capture service to recognize fields of a specific type. This is the first step for capturing a custom field, without using any of the predefined data capture profiles, and makes sense only if you have left the profile name parameter empty when creating the data capture service.
Predefined data capture profiles are only available in the extended version.
The method returns an instance implementing the RTRDataCaptureProfileBuilder protocol, or nil if a profile may not be configured (e.g. you have already specified a profile name on creating the data capture service).