Moves the files imported from `bootc-image-builder` directly under `pkg`
so they can be imported in reverse. Also fix up any import paths at the
same time.
Signed-off-by: Simon de Vlieger <supakeen@redhat.com>
This commit adds a new `BuildLog` option to the `OSBuildOptions`
that can be used to generate a streamed buildlog (e.g. to a file
or a websocket).
This will be used in `ibcli` with a new `--with-buildlog` option.