Ingest genres from PA onto channels. Add filters to both channels and channel_groups endpoints
to filter by channel_genre.
Merge branch 'mbst-9629-channel-genres' into stage

Conflicts:
	src/main/java/org/atlasapi/output/simple/ChannelSimplifier.java
	src/main/java/org/atlasapi/remotesite/pa/channels/PaChannelsIngester.java