additional data for type StopWatch in swagger api (#12458)
* additional data for type StopWatch in swagger api
* fix lint-backend issue with gofmt
* fix format in v1_json with 'make generate-swagger'
* using issue.LoadRepo() instead of getRepositoryByID()
Co-authored-by: jochen@homeland <no-go@localhost>
Co-authored-by: zeripath <art27@cantab.net>