Reruns TestBulkLoadHFilesSplitRecovery using BulkLoadHFiles in secure mode. This suite is unable
to verify the security handoff/turnove as miniCluster is running as system user thus has root
privileges and delegation tokens don't seem to work on miniDFS.
Thus SecureBulkload can only be completely verified by running integration tests against a secure
cluster. This suite is still invaluable as it verifies the other mechanisms that need to be
supported as part of a LoadIncrementalFiles call.