This change introduces ULTs for untested
parts of MultiCommand class. Furthermore,
it contains MockMultiCommand class, which
allows white-box testing.
Related-To: NEO-6834
Signed-off-by: Patryk Wrobel <patryk.wrobel@intel.com>
Dates corrected in copyright headers to reflect original publication date
(2018 for OpenCL, 2020 for Level Zero).
Signed-off-by: lgotszal <lukasz.gotszald@intel.com>