114896c4e0
Summary: - moved existing compression options to `InitializeOptionsGeneral` since they cannot be set through options file - added flag for `zstd_max_train_bytes` which was recently introduced by #3057 Closes https://github.com/facebook/rocksdb/pull/3128 Differential Revision: D6240460 Pulled By: ajkr fbshipit-source-id: 27dbebd86a55de237ba6a45cc79cff9214e82ebc