Changed Default Settings to Improve ClickHouse Row Reading Performance

Changed default values of settings parallelize_output_from_storages and input_format_parquet_preserve_order. This allows ClickHouse to reorder rows when reading from files (e.g. CSV or Parquet), greatly improving performance in many cases. To restore the old behavior of preserving order, use parallelize_output_from_storages = 0, input_format_parquet_preserve_order = 1. #49479 (Michael Kolupaev).