Rename network load balancer modules (#1466)

* update LB modules to new names

* update LB modules names

* update test paths

modules/net-lb-int/groups.tf

@@ -0,0 +1,33 @@
+/**
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+# tfdoc:file:description Optional instance group resources.
+
+resource "google_compute_instance_group" "unmanaged" {
+  for_each    = var.group_configs
+  project     = var.project_id
+  zone        = each.value.zone
+  name        = each.key
+  description = each.value.description
+  instances   = each.value.instances
+  dynamic "named_port" {
+    for_each = each.value.named_ports
+    content {
+      name = named_port.key
+      port = named_port.value
+    }
+  }
+}