Merge pull request #24 in ASAPO/asapo from feature/aai to develop

* commit '631491e7': (27 commits)
  use more files for test
  update manual tests
  start adding tokens to worker
  use HMAC token instead of JWT
  create asapo_tools, generating token
  fix
  fix tests
  fix tests
  fix
  update authorizer service - read from files, return beamline
  updated manual tests, fix windows test
  test failure on wrong beamtime_id
  update tests for authorizer
  fix memory leaks
  add authorizer
  restructure go files
  set beamtime_id only once at producer create
  finished auth handler
  more work on authorization handler
  more work on authorization handler
  ...