Commit 395ba05c44 implemented a POC to allow for changing the behavior
when loading multiple container.conf files in sequence. By default, the
TOML encoder will override existing data/fields with the one specified
in the loaded file. The POC has demonstrated how this behavior can be
changed to append string slices instead of overriding/replacing them
entirely.
This change is the first step of integrating these appendable string
arrays into containers.conf and starts with enabling the `Env`,
`Mounts`, and `Volumes` fields in the `[Containers]` table.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Valentin Rothberg