Support --verbose with new --what-if flag on azd provision

[savannahostrowski]

Tracking this so we don't forget about it. Not required in #2550 but could follow with user feedback

[ellismg]

Something to consider here is the interaction with terraform when it is is the IaC provider of choice. I think that by default, tf plan is going to show something that feels like --detailed has been passed. Our general strategy for TF in the past has been to just show the raw output from the tool (with the native terraform styling) instead of trying to have it match the UX we have for ARM based deployments.

From looking at the tf plan documentation, it does seem like we could get the output of the plan in a structured format (i.e. json) and then render it ourselves, but that would be different from what we do today for the normal provision case where we just flow the output of both plan and apply back to the user.

[savannahostrowski]

This is a good callout - I think it'd be nice to have a similarly high level view of the plan for Terraform but we can tackle that investigation as demand arises.