Add GitHub Actions workflow for MSBuild #19

Job	Run time
Build submodules (x86)	1m 33s
Build submodules (x64)	1m 2s
Build NaturalVoiceSAPIAdapter (ARM64)	2m 22s
Build submodules (ARM64)	1m 9s
Build NaturalVoiceSAPIAdapter (x86)	2m 4s
Build NaturalVoiceSAPIAdapter (x64)	2m 2s
release	25s
	10m 37s

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