The new `pkgmanifestjson` call prints all package manifest of a feed in
JSON format. This function can be used to print an overview of packages
information used for downstream tooling.
The script is entirely based on Petrs work on dependency visualisation.
Signed-off-by: Paul Spooren <mail@aparcar.org>
Preparation for supporting dynamic ABI versions that depend on the runtime
configuration. Read the suffix from the staging dir pkginfo version files.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
