Support --copy Mode for ClickHouse Local as Shortcut for Format Conversion

Why it matters

This feature addresses the need for an easier and more straightforward way to convert data formats locally using clickhouse local. It simplifies workflows where users require fast and seamless transformations of data between supported input and output formats without manually specifying the formats each time.

How to use it

Use the --copy option with the clickhouse local command. This mode automatically converts the input data format to the desired output format, acting as a shortcut for explicit format conversion commands.