YT-22157: Add HLL(4) to chunk meta

- Use lower precision to reduce size effect on meta
- Put HLL into a separate meta extension TLargeColumnarStatisticsExt
- Compress extension data with Zlib
- Clear new extension from TVersionedChunkMeta

Logic that produces new extension is protected by the following flags:
- TChunkWriterOptions::EnableLargeStatistics option
- TableWriterEnableLargeStatistics in TOperationSpecBase
- TableWriterEnableLargeStatistics in native connection config

the flag fill be rolled as a spec template, and as an rpc proxy dynconfig change.
4ca52347756971a47355f95ba17b05675e961c7e

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