Changes to List videos

added the required property video/items/catalog to the response with the 200 status

added the required property video/items/last_played to the response with the 200 status

api operation id videos was added

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 500

added the required property md5 to the response with the 200 status

added the required property total_count to the response with the 200 status

added the required property video to the response with the 200 status

added the non-success response with the status 400