[PDI-10342] - Hive consumer implementation to allow for a hive principal

Conflicts:
	mapr31/src/org/pentaho/hadoop/shim/mapr31/authentication/MapRSuperUserKerberosConsumer.java
	mapr31/src/org/pentaho/hadoop/shim/mapr31/authentication/MapRSuperUserKerberosConsumer.java
Merge pull request #95 from brosander/PDI-10342-4

[PDI-10342] - Hive consumer implementation to allow for a hive principal