Move CI/CD to GitHub Actions #44

Job	Run time
Timestamp	12s
Test StringEnum Trimmed	25s
Build Mac Logging	31s
Build AutoDiscovery	59s
Build and Test Libraries on Windows	9m 2s
Build macOS Pass 1	55s
Build and Test Libraries on macOS	27m 53s
Build Windows Pass 1	7m 45s
Build macOS Shim	37s
Build Windows Shim	55s
Build macOS UEFS	1m 34s
Build Windows UEFS	3m 9s
Build Windows Pass 2	0s
Build macOS Pass 2	0s
Publish UEFS Container	1s
Publish to GitHub	1s
Publish to NuGet	1s
	54m 0s

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