switch to the Az module for Azure

[TylerLeonhardt]

Az is the future. This uses that and changes the cmdlet we use.

fixes #48

[daxian-dbw]

azure-functions-powershell-worker/src/PowerShell/PowerShellManager.cs

Lines 95 to 98 in 0cfc122

	// TODO: remove this when we figure out why it fixed #48
	_pwsh.AddCommand("Microsoft.PowerShell.Core\\Import-Module").AddParameter("Name", "AzureRm.Netcore").InvokeAndClearCommands();
	AuthenticateToAzure();

I guess we need to change the module name AzureRm.Netcore here too.

[TylerLeonhardt]

awesome - I was able to remove that line which means #48 will be fixed 😄