Terrafy a single resource

[magodo]

This PR refactors the CLI to move the default functionality into resource-group/rg subcommand, and introduce a new subcommand: resource/res, which "terrafies" only a single resource by specifying its Azure resource id. It only works non-interactively and generate the TF state and cfg. It also supports --append option to allow users to import a single resource into existing workspace.

Example:

/tmp/test
💢  aztfy res /subscriptions/0000/resourceGroups/spin-dailyrun-rg/providers/Microsoft.Compute/virtualMachines/spin-vm
Initializing...
Identifying reource type...
Importing /subscriptions/0000/resourceGroups/spin-dailyrun-rg/providers/Microsoft.Compute/virtualMachines/spin-vm as azurerm_linux_virtual_machine.res-0
Generating Terraform configurations...

Note that the TF resource type is identified automatically, by leveraging the https://github.com/magodo/aztft.

[ms-henglu]

LGTM！

[rtorato]

It'll be create a new release with this merge?

[magodo]

@rtorato Yes, a new release will come shortly.

[koudaiii]

I found v0.6.0. If brew user will be able to do so shortly. ref Homebrew/homebrew-core#106301