feat: allow creation of SBOM for custom builder

[OliverNocon]

Description

Allow creation of SBOMs also for custom builder.

Default for nodejs and java modules will be as per default of npm and java builder.

Custom configuration is possible.
It is currently anticipated via a new build parameter sbom-create-commands:

modules:
- name: test
   ...
   build-parameters:
     builder: custom
     commands:
       - ...
       - ...
     sbom-create-commands:
       - ...
       - ... -outputSBOM ${sbom-file-name}

${sbom-file-name} is the placeholder for the SBOM names which are created on the fly

Checklist

• Code compiles correctly
• Relevant tests were added (unit / contract / integration)
• Relevant logs were added
• Formatting and linting run locally successfully
• All tests pass
• UA review
• Design is documented
• Extended the README / documentation, if necessary
• Open source is approved