Add news feed blocklist support
Android NewsFetcher is independent of NewsFetcher in i2p.i2p and there's no mechanism to keep the features in sync.
The news feed blocklist feature (see proposal 129) was added to i2p.i2p in 2016 but never added to Android. This is important these days as we have multiple bad routers out there that could easily overwhelm Android routers.
Adding support should be straightforward; look in i2p.i2p NewsFetcher for parser.getBlocklistEntries(), hopefully a copy/paste and test exercise mostly.