Add support for hero images with Windows #8

Job	Run time
Build MacNotifyWrapper (osx-arm64 + osx-x64)	16s
Build WinToastWrapper (win-arm64)	41s
Build WinToastWrapper (win-x64)	1m 18s
Build WinToastWrapper (win-x86)	46s
Pack NuGet and publish release	1s
	3m 2s

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