**Is your feature request related to a problem? Please describe.** would be great to demonstrate the available options for both training and inference there were quite a few requests, see also: - https://github.com/Project-MONAI/MONAI/discussions/1641 - https://github.com/Project-MONAI/MONAI/issues/719 - https://github.com/Project-MONAI/MONAI/issues/995 - https://github.com/Project-MONAI/MONAI/issues/808