We need a way to filter based on the availability of feature when running fat tests.

[benjamin-confino]

This could be used to fix a bug in the microprofile compliance pipeline (once we figure out why it has beta feature files but not beta feature jars), and is already in use in at least one fat test. See https://github.com/OpenLiberty/open-liberty/blob/integration/dev/com.ibm.ws.jpa.tests.beanvalidation_jpa_2.0_fat/fat/src/com/ibm/ws/jpa/tests/beanvalidation/RepeatWithJPA20.java