Changes to GET /users/:userID/notification

removed the success response with the status 200

the endpoint scheme security traqOAuth2 was removed from the API

endpoint deprecated

added the non-success response with the status 410

removed the non-success response with the status 404

api operation id getUserSubscribedChannels removed and replaced with getUserSubscribeChannels

api operation id getUserNotifiedChannels removed and replaced with getUserSubscribedChannels

api operation id getUserNotifiedChannels was added

the endpoint scheme security traqOAuth2 was added to the API