CASSANDRA-17021: Support ZSTD dictionary compression #4399
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Add ZstdDictionaryCompressor and wire to the read and the write path
Resolve a correct dictionary compressor on the read path
lazily init ZstdDictCompress and ZstdDictDecompress
checksumming
Added compression dictionary table and accessors
Wire to System table access to CompressionDictionaryManager
Integrate dictionary trainer
Add nodetool to train dictionary
Cleanup
break CompressionDictionaryManager up
properly release dictionary with reference counting
Add ZstdDictionaryCompressorTest
Simplify trainer interface
Bump SSTable version
Add CompressionDictionaryCacheTest
Add ZstdDictionaryTrainerTest
update to use assertJ
Add CompressionDictionaryTrainingConfigTest
Update comments in CompressionDictionaryEventHandler and update exception handling in MessagingService
Add CompressionDictionaryEventHandlerTest
Add CompressionDictionarySchedulerTest
Minor update
Add CompressionDictionaryManagerTest
Add TrainCompressionDictionaryTest (nodetool)
Add CompressionDictionaryIntegrationTest
Tidy up
Add ZstdCompressionDictionaryTest
Add SystemDistributedKeyspaceCompressionDictionaryTest
Add --sampling-rate for the nodetool
Update consistency level from QUORUM to ONE for best effort
Add the missing setCompressionDictionaryManager to sstable writer builders
Add benchmark