tests: Output Vulkan SC CLI help when -h is used #294

Job	Run time
code-format	1m 4s
check_vvl	1m 22s
mingw	1m 31s
windows (amd64)	16m 29s
Ubuntu Backcompat	9m 25s
linux (address sanitizer, debug, robinhood ON )	25m 16s
windows (amd64_x86)	15m 49s
linux (address sanitizer, release, robinhood ON )	9m 48s
linux (thread sanitizer, release, robinhood ON )	32m 29s
linux (address sanitizer, release, robinhood OFF )	9m 51s
	2h 3m 4s

Provide feedback