Allow providing file schema for parquet files

[metesynnada]

Is your feature request related to a problem or challenge?

Currently, manually specifying the schema for a Parquet file will error. There is no particular reason for this, we may allow schema providing for parquet files as well.

This is a blocker for the #7036.

Describe the solution you'd like

• Add schema field in ParquetReadOptions
• Remove the error message.
• Add tests when a schema is provided.

Describe alternatives you've considered

NA

Additional context

NA

[alamb]

Another usecase for manually defining a parquet file's schema is to provide constraints like PRIMARY KEY which are not encoded in the parquet file itself