We add a regular LookupBoolean that can fail lookups, which is used by
the WithDefault version. We want to use this directly later in some places.
It is fina to change API here because this has not been in a release yet.
Signed-off-by: Alexander Larsson <alexl@redhat.com>
Reduce the number of top-level packages in ./pkg by moving quadlet
packages under ./pkg/systemd.
[NO NEW TESTS NEEDED] - no functional change.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>