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

Levi Tamasi c15e85bdcb Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred ) ... Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/6519 Test Plan: ``` make all make check ``` Differential Revision: D20400691 Pulled By: ltamasi fbshipit-source-id: 20ef911cf1c2c92c7f71ef0b493f9be64f2eef94		5 years ago
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blob_constants.h	Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred )	5 years ago
blob_file_addition.cc	Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred )	5 years ago
blob_file_addition.h	Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred )	5 years ago
blob_file_addition_test.cc	Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred )	5 years ago
blob_file_garbage.cc	Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred )	5 years ago
blob_file_garbage.h	Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred )	5 years ago
blob_file_garbage_test.cc	Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred )	5 years ago
blob_index.h	Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred )	5 years ago
db_blob_index_test.cc	Move BlobDB related files under db/ to db/blob/ (#6519 An error occurred )	5 years ago