Modularize Terraform code for better reuse and maintainability

[glovecchi0]

We need to modularize the existing Terraform code to improve reusability, maintainability, and organization. By splitting the code into modules, we can reduce duplication, simplify management, and make it easier to scale and collaborate across projects. This approach will also help abstract complex configurations into simpler, reusable components.

TO BE structure:

terraform-harvester-equinix/
├── modules/
├── examples/

I've already done something similar here.

After that, nothing prevents us from publishing in the official Terraform Registry.

[glovecchi0]

Hey @dnoland1, what do you think?

[glovecchi0]

Another example here.