build

Reintroduce QVM support #169

Job	Run time
macOS x86_64 Debug (Non-Portable)	3m 18s
WinXP x86 Release (Non-Portable)	12m 35s
Ubuntu x86 Debug (Non-Portable)	5m 11s
macOS x86_64 Release (Non-Portable)	3m 58s
Windows x86 Debug (Non-Portable)	7m 30s
WinXP x86_64 Release (Non-Portable)	12m 39s
Ubuntu x86 Release (Non-Portable)	6m 55s
Windows x86 Release (Portable)	7m 27s
Ubuntu x86_64 Debug (Non-Portable)	4m 0s
Windows x86 Release (Non-Portable)	4m 28s
Ubuntu x86_64 Release (Non-Portable)	3m 45s
Windows x86_64 Debug (Non-Portable)	5m 22s
Windows x86_64 Release (Portable)	6m 41s
Windows x86_64 Release (Non-Portable)	6m 43s
create-latest	0s
create-release	0s
	1h 30m 32s

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