port some filter enhancements

[tabokie]

ribbon filter and optimize_filters_for_memory, both only effective when format_version >= 5.

[ti-srebot]

@tonyxuqqi, Thanks for your review. The bot only counts LGTMs from Reviewers and higher roles, but you're still welcome to leave your comments. get siglist: dial tcp 172.16.4.167:34000: connect: no route to host

[tonyxuqqi]

It looks that after using the ribbon filter, the filter insert volume in block cache is reduced from ~2GB/s to < 20MB/s.