Pantavisor SBOM

Pantavisor build system can generate a basic SBOM in SPDX JSON format for a specific target:

./build.docker.sh <TARGET> sbom

Using this command, the SBOM for the target will be generated be in out/TARGET/sbom.json. If you need to create an SBOM including packages from your containers you can use PV_MERGE_SBOM to specify a path where Pantavisor look for SBOM documents, extract its packages and adds them to the Pantavisor's SBOM