Changes to Get KYB form fields (business)

added the optional property error/authorization to the response with the default status

api tag customer-session added

added the optional property data/items/answer_revision to the response with the 200 status

added the optional property data/items/write_revision to the response with the 200 status

added the optional property error/api_client_id to the response with the default status

the data/items/id response's property pattern was changed from ^ffld_[0-9a-hjkmnp-tv-z]{26}$ to ^ffld_[0-7][0-9a-hjkmnp-tv-z]{25}$ for the status 200