Handle unknown logical types

New logical types introduced in parquet-format shall be properly handled in parquet-mr releases that are not aware of this new type. In this case we shall read the data as if only the primitive type would be defined (without a logical type) with one exception: We shall not use min/max based statistics (including column indexes) since we don't know the proper ordering of that type.

**Reporter**: [Gabor Szadovszky](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=gszadovszky) / @gszadovszky

_{**Note**: *This issue was originally created as [PARQUET-2182](https://issues.apache.org/jira/browse/PARQUET-2182). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

No se nombran archivos ni pruebas. Empieza por localizar el manejo de tipos lógicos y la lectura de estadísticas de mín./máx. o de índices de columna, y después verifica el comportamiento para un tipo lógico desconocido: léelo usando únicamente su tipo primitivo y evita esas estadísticas porque se desconoce el orden.

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