Before this change, this code implemented an ad-hoc parser for a
subset of vfs and mount options.
After the config re-organization it can use the same parsing code as
the rest of rclone which simplifies the code and exposes all the VFS
and mount options.
This proposal expand the current docker volume plugin troubleshooting possible steps to include a state cleanup command and a reminder that a un/reinstall don't clean up those cache files.
Co-authored-by: albertony <12441419+albertony@users.noreply.github.com>
