[C API] add rocksdb_set_db_options for dynamic DB option updates#14615

mjc2-stripe wants to merge 1 commit intofacebook:mainfacebook/rocksdb:mainfrom

mjc2-stripe:add-rocksdb-set-db-optionsmjc2-stripe/rocksdb:add-rocksdb-set-db-optionsCopy head branch name to clipboard