Add initial Terraform provider configuration for hcloud and netbox

terraform/provider.tf

@@ -0,0 +1,12 @@
+terraform {
+  required_providers {
+    hcloud = {
+      source = "hetznercloud/hcloud"
+      version = "1.57.0"
+    }
+    netbox = {
+      source = "e-breuninger/netbox"
+      version = "5.0.0"
+    }
+  }
+}