shrine

Pull request #1504: Feature/SHRINE2020 1625

Merge in SHRINE/shrine from feature/SHRINE2020-1625 to feature/SHRINE2020-1218-cats-effect-upgrade

* commit 'afb4c86e52105b7890ae16ea53f614a43f328c84':
  Some notes to wrap up SHRINE2020-1625
  Revert "Extracting the dispatcher one layer for SHRINE2020-1625"
  Revert "Now starting the IOs for SHRINE2020-1625"
  Now starting the IOs for SHRINE2020-1625
  Extracting the dispatcher one layer for SHRINE2020-1625
  Got the hub working - and maybe downstream nodes - in SHRINE2020-1625
  Got an example ping service working for SHRINE2020-1625
  Upgrade circe to 1.4.x for SHRINE2020-1355