LU-5732 hsm: complementary testsuite for user HSM API

LU-5732 hsm: complementary testsuite for user HSM API

A few tests for the userspace Lustre HSM API. Tests
registration, archiving, progress report amd HSM state
of files.

Change-Id: I64ba3361d6a7b768b133b584e551724cf2c5bee2
Signed-off-by: frank zago <fzago@cray.com>
Reviewed-on: http://review.whamcloud.com/12836
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: Henri Doreau <henri.doreau@cea.fr>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>