Add an option to list all parquet files that have their metadata cached in object storage.

[Selfeer]

Describe the new feature

We need a way to get a list of a parquet files that have their metadata cached in object storage via input_format_parquet_use_metadata_cache=1.

Use case

It is helpful for QA and general use as well to be able to determine weather the file that we are querying has it's metadata successfully cached or not and also to determine the files without cached metadata.

[Selfeer]

@arthurpassos