Fixed Issues in Apache Parquet

Review the list of Parquet issues that are resolved in Cloudera Runtime 7.1.6.

CDPD-11484: Updated log4j to solve CVE-2019-17571

Updated log4j to solve CVE-2019-17571.

No Apache issue is associated with this this fixed issue.

CDPD-17613: Removed conflicting log4j-over-slf4j in parquet-tools

Removed conflicting log4j-over-slf4j in parquet-tools.

No Apache issue is associated with this this fixed issue.