Rely on "ReferenceName" property to get fully qualified extension name; Status Message's name changes from "Automatic to Automated"

[sethusrinivasan]

Issues:

1. Azure RDFE service model now reports "ReferenceName" property as fully qualified extension name "Microsoft.SqlServer.Management.SqlIaaSAgent"
2. Status message's name was updated from "Automatic to Automated.

Fixes:

1. remove code that was concatenating publisher and extension name and just rely on "ReferenceName" when we look for Extension Status in powershell cmdlet
2. fix up constants AutoPatchingStatusMessageName & AutoBackupStatusMessageName ( rename Automatic to Automated )

[azurecla]

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[AzureRT]

Can one of the admins verify this patch?

[azurecla]

Hi @sethusrinivasan, I'm your friendly neighborhood Azure Pull Request Bot (You can call me AZPRBOT). Thanks for your contribution!

It looks like you're working at Microsoft (seths). If you're full-time, we DON'T require a contribution license agreement.

If you are a vendor, or work for Microsoft Open Technologies, DO please sign the electronic contribution license agreement. It will take 2 minutes and there's no faxing! https://cla.azure.com.

TTYL, AZPRBOT;

[AzureRT]

Can one of the admins verify this patch?

[hovsepm]

Are you still working on this PR or you need CR and merge?