Changes to Add item to list

added the new required header request parameter X-CSRF-Token

added required request body

for the path request parameter id, the min was set to 1.00

api operation id postUserListsByIdItems was added

added the media type application/json for the response with the 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