Added ARM NEON Optimizations with Upgrade Note for ClickHouse

Added numerous optimizations for ARM NEON #38093(Daniel Kutenin), (Alexandra Pilipyuk) Note: if you run different ClickHouse versions on a cluster with ARM CPU and use distributed queries with GROUP BY multiple keys of fixed-size type that fit in 256 bits but don't fit in 64 bits, the result of the aggregation query will be wrong during upgrade. Workaround: upgrade with downtime instead of a rolling upgrade.