* build / convert: add `--platform` flag to support linux/amd64 &
linux/arm64
* build: add `--pull` flag
* run/hetzner: add `--type` flag to select server type
* run/hetzner: add `--location` flag to select server location
Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>
set user permissions on image if run with sudo or in docker
run/vbox & run/hetzner: run qemu-img in docker if not available in path
Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>