Add ability to view deployment time in Azure output window

[pierceboggan]

Today, the Azure output window shows whether a deployment to an Azure Function succeeded or failed, but it does not show the time the deployment operation was completed. This is helpful for comparing deployment runs in logs and ensuring my recent deployment was successful.

[alexweininger]

We think this is a great suggestion. cc: @MicroFish91 maybe look into this while you're making updates to the activity log.