DRILL-540: Allow querying hive views in Drill
1. Added DrillHiveViewTable which allows construction of DrillViewTable based
on Hive metadata
2. Added initialization of DrillHiveViewTable in HiveSchemaFactory
3. Extracted conversion of Hive data types from DrillHiveTable
to HiveToRelDataTypeConverter
4. Removed throwing of UnsupportedOperationException from HiveStoragePlugin
5. Added TestHiveViewsSupport and authorization tests
6. Added closeSilently() method to AutoCloseables
closes #1559
