Changes to Initiate VA transfer

added the new required request property amount

added the new required request property currency

added the new required request property narration

the request's body type changed from no type to object

removed InitiateTransferRequest subschema #2 from the request body allOf list

the endpoint scheme security ApiKeyAuth was added to the API

added the new optional request property beneficiary

added the new optional request property beneficiaryId

added SuccessResponseDto subschema #2 to the response body allOf list for the response status 201

removed GenericResponse from the response body allOf list for the response status 201

added the non-success response with the status 400

added the non-success response with the status 401

added the non-success response with the status 403

added the non-success response with the status 404

added the non-success response with the status 422

added the non-success response with the status 500