Merge pull request #22 in ASAPO/asapo from feature/parallel-data-transfer to develop

* commit 'c065ebff': (28 commits)
  refactor worker
  refactor producer
  refactor dummy producer
  test producer_api in direct output mode
  add timeout to example
  add receiver root folder to config
  update grafana dashboard
  parallel connections work
  add tag for receiver
  refacgtor, add connection tag to monitoring
  fullchain test in nomad
  more test in nomad
  start converting integration tests into nomad
  fixed some tests
  refactor, add option to producer api to write to file instead of sending via network
  fix build
  all tests pass
  refactor tests
  more work
  make pool request tests work
  ...