add qemu.yml #282

Job	Run time
linux (tiny, clang, none)	2m 6s
linux (tiny, gcc, none)	1m 28s
linux (normal, clang, none)	8m 12s
linux (normal, gcc, none)	8m 7s
linux (huge, clang, none)	9m 26s
linux (huge, gcc, none)	14m 19s
linux (tiny, clang, nogui)	1m 30s
linux (tiny, gcc, nogui)	1m 28s
linux (huge, gcc, testgui, true, true)	10m 52s
linux (huge, clang, asan)	25m 16s
linux (huge, gcc, unittests, true)	2m 32s
linux (normal, gcc, vimtags)	1m 35s
macos (tiny)	1m 33s
macos (normal)	7m 16s
macos (huge)	13m 59s
windows (HUGE, msvc, no, no, x64)	7m 21s
windows (HUGE, mingw, yes, yes, x86, yes)	12m 59s
windows (HUGE, msvc, no, yes, x86)	11m 48s
windows (HUGE, mingw, yes, no, x64, yes)	11m 17s
windows (NORMAL, msvc, yes, no, x86)	10m 21s
windows (NORMAL, mingw, no, yes, x64)	10m 26s
windows (TINY, msvc, yes, yes, x64)	3m 4s
windows (TINY, mingw, no, no, x86)	2m 49s
	2h 59m 44s

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