Changes to List the caller group's balance statements

added the optional property error/authorization to the response with the 400 status

added the optional property error/authorization to the response with the 401 status

added the optional property error/authorization to the response with the 403 status

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

added the optional property error/api_client_id to the response with the 400 status

added the optional property error/api_client_id to the response with the 401 status

added the optional property error/api_client_id to the response with the 403 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 ^stmt_[0-9a-hjkmnp-tv-z]{26}$ to ^stmt_[0-7][0-9a-hjkmnp-tv-z]{25}$ for the status 200