Before this change when setting permissions from the metadata rclone
would stop on the first error.
This change causes rclone to attempt to set all the permissions and
return an error summary at the end.
Before this change trying to server side copy an object from a my
drive to a shared drive using --metadata caused this error:
Sharing restrictions cannot be set on a shared drive item., teamDrivesSharingRestrictionNotAllowed
This was because we were setting the "writers-can-share" metadata
which isn't allowed on shared drives
Google drive doesn't allow the btime (created time) metadata to be
updated when updating an existing object.
This changes skips btime metadata if we are updating an existing
object but allows it otherwise.
- fetch metadata with listings and fetch permissions in parallel
- only write permissions out if they are not inherited.
- make setting labels, owner and permissions work controlled by flags
- `--drive-metadata-labels`, `--drive-metadata-owner`, `--drive-metadata-permissions`
