Add ParquetMetadata Input Format for Reading Parquet File Metadata

Why it matters

This feature allows users to efficiently extract and query metadata from Parquet files without reading the entire dataset, improving performance and enabling better data introspection.

How to use it

Users can apply the ParquetMetadata input format when reading data from Parquet files to access their metadata. This can be done by specifying ParquetMetadata as the input format in their queries or table definitions.