build

Reintroduce QVM support #173

Job	Run time
macOS x86_64 Debug (Non-Portable)	3m 17s
Ubuntu x86 Debug (Non-Portable)	6m 37s
macOS x86_64 Release (Non-Portable)	3m 51s
Windows x86 Debug (Non-Portable)	6m 14s
Ubuntu x86 Release (Non-Portable)	4m 29s
WinXP x86 Release (Non-Portable)	10m 59s
Windows x86 Release (Portable)	4m 40s
Ubuntu x86_64 Debug (Non-Portable)	7m 20s
WinXP x86_64 Release (Non-Portable)	15m 7s
Ubuntu x86_64 Release (Non-Portable)	3m 35s
Windows x86 Release (Non-Portable)	7m 49s
Windows x86_64 Debug (Non-Portable)	3m 0s
Windows x86_64 Release (Portable)	9m 20s
Windows x86_64 Release (Non-Portable)	6m 36s
create-latest	0s
create-release	0s
	1h 32m 54s

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