[PARQUET-1719] Make ParquetReader(List<InputFile>, ParquetReadOptions, ReadSupport<T>) constructor public

[dssysolyatin]

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Jira

• My PR addresses the following PARQUET-1719 issues "PARQUET-1719: Make ParquetReader(List, ParquetReadOptions, ReadSupport) constructor public"

Tests

• My PR does not need testing for this extremely good reason: No new functions were added

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[dssysolyatin]

I’m closing this PR since it’s been about 6 years since the issue was created and 3 years since the last discussion. It seems like nobody needed this except me