Enable SBOM generation in the build

[ylussaud]

Enable SBOM generation in the build (see this commit).

[ylussaud]

we might need to upgrade to Tycho 5.0.1

[ylussaud]

some documenation.

[ylussaud]

have a look at cbi-sbom
https://download.eclipse.org/cbi/updates/p2-sbom/products/nightly/latest

cbi-sbom/cbi-sbom -application org.eclipse.cbi.p2repo.sbom.generator -consoleLog -noSplash -verbose -process-bundle-classpath -git-issues -central-search -input <SOME UPDATE SITE> -classifier-exclusions binary feature metadata -component-exclusions ".*[.]source" -xml-output dependency-track-sbom/sbom.xml -json-output dependency-track-sbom/sbom.json -cache cache -index dependency-track-sbom/index.html -vmargs -Dfile.encoding=UTF-8