Changes to List questions

added subschema #1 subschema #2 subschema #3 to the data response property oneOf list for the response status 200

deleted the header request parameter Authorization

the endpoint scheme security bearer_auth was added to the API

removed subschema #1 subschema #2 subschema #3 from the data response property oneOf list for the response status 200

api operation id listQuestions removed and replaced with questions_listQuestions

added the optional property errors/items/parameter to the response with the 400 status

the response's body type changed from no type to object for status 400

removed the non-success response with the status 422

added the required property errors to the response with the 400 status