feat: add DNS record resource and datasources (#25)

* add DNS record

* revamp tests

* lint

* cleanup

* feat dns test

* chore: add DNS Record tests

* linting

* f

internal/utils/attribute.go

@@ -0,0 +1,35 @@
+package utils
+
+import (
+	"github.com/hashicorp/terraform-plugin-framework/attr"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
+)
+
+// ID generates an attribute definition suitable for the always-present `id` attribute.
+func ID(desc ...string) schema.StringAttribute {
+	a := schema.StringAttribute{
+		Computed:    true,
+		Description: "The unique identifier of this resource.",
+		PlanModifiers: []planmodifier.String{
+			stringplanmodifier.UseStateForUnknown(),
+		},
+	}
+
+	if len(desc) > 0 {
+		a.Description = desc[0]
+	}
+
+	return a
+}
+
+// ShouldBeRemoved evaluates if an attribute should be removed from the plan during update.
+func ShouldBeRemoved(plan attr.Value, state attr.Value, isClone bool) bool {
+	return !IsDefined(plan) && IsDefined(state) && !isClone
+}
+
+// IsDefined returns true if attribute is known and not null.
+func IsDefined(v attr.Value) bool {
+	return !v.IsNull() && !v.IsUnknown()
+}