Add support for page skipping in parquet reader

[mkleinbort-ic]

Description

I am not sure if this is implemented, but keen to see it added if it's not.

ColumnIndex Layout to Support Page Skipping

It seems to be a way to skip data pages when reading a parquet file.

This can be very useful when you have chunky data - say - sorted first by date and userId. This would allow you to quickly select one date & userId pair (by reading only some pages of the relevant row group) without loosing the benefits of parquet.

[mkleinbort-ic]

This is a useful reference:

https://stackoverflow.com/questions/26909543/index-in-parquet

With promising benchmarks: