Summary:
Add a new kv ratio based compaction picking algorithm in fifo compaction
Pull Request resolved: https://github.com/facebook/rocksdb/pull/14326
Test Plan: Unit test
Reviewed By: pdillinger
Differential Revision: D93257941
Pulled By: xingbowang
fbshipit-source-id: fd2d0e1356c7b54682a1197475a1bd26cb45c9d4