fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

sdong 7a0dbdf3ac Add ZSTD (not final format) compression type ... Summary: Add ZSTD compression type. The same way as adding LZ4. Test Plan: run all tests. Generate files in db_bench. Make sure reads succeed. But the SST files cannot be opened in older versions. Also some other adhoc tests. Reviewers: rven, anthony, IslamAbdelRahman, kradhakrishnan, igor Reviewed By: igor Subscribers: MarkCallaghan, maykov, yoshinorim, leveldb, dhruba Differential Revision: https://reviews.facebook.net/D45747		10 years ago
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rocksdb	Add ZSTD (not final format) compression type	10 years ago