Support adding quarkus.index-dependency entries to scan CDI beans

[astefanutti]

By default, Quarkus does not discover CDI beans outside the main module, which is the generated Camel K integration project.

For users to enable scanning of CDI beans from the integration dependencies without mandating the dependencies to provide a Jandex index, it should be possible to add quarkus.index-dependency entries for specific dependencies, as documented in:

https://quarkus.io/guides/cdi-reference#how-to-generate-a-jandex-index