[C++] Supply row group indices to parquet::arrow::FileReader::ReadTable

By looking at the Parquet statistics, a user can already determine with its own logic which RowGroups are interesting for him. Currently we only provide functions to read the whole file or individual RowGroups. By supplying parquet::arrow with the RowGroups at once, it can better optimize its memory allocations as well as make better use of the underlying thread pool.