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Convert .ci build/test pipelines from Azure DevOps to GitHub Actions #1

Job	Run time
Build Package	1m 29s
PowerShell Core on Windows / PowerShell Core on Windows	17m 24s
PowerShell Core on Ubuntu / PowerShell Core on Ubuntu	50s
PowerShell Core on macOS / PowerShell Core on macOS	35s
Windows PowerShell on Windows / Windows PowerShell on Windows	17m 23s
AzAuth PowerShell Core on Windows / AzAuth PowerShell Core on Windows	1m 3s
Build Package	1m 31s
AzAuth PowerShell Core on Windows / AzAuth PowerShell Core on Windows	1m 8s
PowerShell Core on Windows / PowerShell Core on Windows	6h 0m 18s
PowerShell Core on macOS / PowerShell Core on macOS	31s
Windows PowerShell on Windows / Windows PowerShell on Windows	6h 0m 17s
PowerShell Core on Ubuntu / PowerShell Core on Ubuntu	1m 0s
	12h 43m 29s