Resources with immutable fields should trigger `ForceNew` within schema

[jakauppila]

Describe the bug

When interacting with Resources that have immutable fields, the resource schema as defined in the Terraform provider should mark those as ForceNew: true to force the provider to create a new resource in the event that the field changes.

Reproduction steps

1. Define a resource with an immutable field
2. Run terraform apply to provision resource
3. Modify the immutable field, in this instance is_federated
4. Run terraform apply to see the error

terraform {
  required_providers {
    avi = {
      source  = "vmware/avi"
      version = "=30.2.2"
    }
  }
}

provider "avi" {
  avi_username   = "USER"
  avi_password   = "PSSWORD"
  avi_controller = "avlbcontroller.contoso.com"
  avi_tenant     = "admin"
  avi_version    = "30.2.2"
}

resource "avi_sslprofile" "foo" {
  name                       = "ssl-profile"
  is_federated             = "false"
  type                          = "SSL_PROFILE_TYPE_APPLICATION"
  accepted_versions {
    type = "SSL_VERSION_TLS1_2"
  }
  accepted_versions {
    type = "SSL_VERSION_TLS1_3"
  }
  ssl_rating {
    compatibility_rating = "SSL_SCORE_GOOD"
    performance_rating   = "SSL_SCORE_EXCELLENT"
    security_score       = "100"
  }
}

Expected behavior

The AVI Terraform Provider should detect that this is an immutable field and mark the resource as ForceNew, forcing the provider to create a new resource when that field changes.

Careful consideration should be noted in documentation that the user will likely want to specify create_before_destroy = false on the resource as naming is unique on the controller.

Additional context

Environment:

• Terraform v1.8.0
• terraform-provider-avi v30.2.2
• AVI 30.2.2