tests: Output Vulkan SC CLI help when -h is used #292

Job	Run time
code-format	1m 1s
check_vvl	1m 30s
linux (address sanitizer, debug, robinhood ON )	24m 31s
windows (amd64)	16m 2s
mingw	1m 33s
linux (address sanitizer, release, robinhood ON )	9m 18s
Ubuntu Backcompat	8m 54s
windows (amd64_x86)	16m 3s
linux (thread sanitizer, release, robinhood ON )	34m 15s
linux (address sanitizer, release, robinhood OFF )	10m 9s
	2h 3m 16s

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