Changes to Initiate a variable recurring payment

changed the pattern of the request property transaction/currency from ^[A-Za-z]{3}$ to ^[A-Z]{3}$

removed the optional property end_to_end_identification from the response with the 200 status

removed the optional property vrp_id from the response with the 200 status

added the new blocked enum value to the status response property for the response status 200

added the new declined enum value to the status response property for the response status 200

added the new executed enum value to the status response property for the response status 200

added the new pending enum value to the status response property for the response status 200