CRD-Generator v2: CLI Application

[baloo42]

Is your enhancement related to a problem? Please describe

Because the CRD-Generator annotation processor is now deprecated, we need a replacement.
(see #5942)

Describe the solution you'd like

A CRD-Generator CLI application could search for a top level annotation (or interface) and generate the CRDs using the CRD-Generator v2 api.

Describe alternatives you've considered

No response

Additional context

• Jandex could be used to find and index the relevant annotations/classes.
• The following options should be supported:
  • Enable / disable parallel generation
  • CRD versions (v1, v1beta1)
    (v1beta1 won't be support)
  • outputPath
  • header in output files
  • Allow to add additional labels
  • Allow to add additional annotations
  • Enable debug output
• The code to scan should be shared between the corresponding maven, gradle and jbang module.

See also:

• CRD-Generator v2: Maven Plugin #5944
• CRD-Generator v2: Gradle Plugin #5945

[baloo42]

Protoype: baloo42#9