Feature: Add `import` functionality to LiveDNS resources

[harrywm]

At Birdie, we use a Gandi LiveDNS domain and records as our DNS setup. We'd love to be able to retroactively utilise this provider to manage our DNS records in Terraform, despite the fact our setup was created manually previously. This would require Terraform's import functionality .

Implementing import in a provider is quite simple - implementing a Importer attribute within a Resource function. For example:

Importer: &schema.ResourceImporter{
   StateContext: schema.ImportStatePassthroughContext,
},

I'd like to contribute to this project, implementing an Importer attribute to the following resources:

• LiveDNS Domain
• LiveDNS Record

Allowing the Infrastructure & Security team at Birdie to import our DNS configuration into Terraform using this provider.

[harrywm]

Closed due to duplicate functionality