Add WinPython support and testing (#330) #14

Job	Run time
Performance Baseline (ubuntu-latest, x86_64-unknown-linux-musl)	3m 31s
Performance Baseline (macos-latest, x86_64-apple-darwin)	9m 10s
Performance Baseline (windows-latest, x86_64-pc-windows-msvc)	7m 22s
	20m 3s

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