Added `--delete-after-download` parameter
icloudpd works in one of three modes of operation:
Copy : Download assets from iCloud that are not in the local storage
This is the default mode
Sync : Download assets from iCloud that are not in the local storage (same as Copy). In addition, delete local files that were removed in iCloud (moved into the "Recently Deleted" album)
This mode is selected with [`--auto-delete`](auto-delete-parameter) parameter
Move : Download assets from iCloud that are not in the local storage (same as Copy). Then delete assets in iCloud that are in local storage, optionally leaving recent ones in iCloud
This mode is selected with [`--keep-icloud-recent-days`](keep-icloud-recent-days-parameter) parameter