[preview] expanding iprep support

This is the preview of the new API that expand the IP reputation to netblocks with CIDR notation

- PR build: https://buildbot.openinfosecfoundation.org/builders/glongo/builds/1
- PR pcaps: https://buildbot.openinfosecfoundation.org/builders/glongo-pcap/builds/1
Can you move this to DetectEngineCtx?