create templates for terraform files

templates/matchbox/groups.tf.j2

@@ -0,0 +1,8 @@
+// Matcher group for OCP Internal machines
+resource "matchbox_group" "{{hub_cluster_name}}" {
+  name = "{{hub_cluster_hostname}}" # Physical Server
+  profile = matchbox_profile.openshift-agent-install.name
+  selector = {
+    mac = "{{hub_cluster_mac_address}}" # PXE boots and installs to 10GbE NIC
+  }
+}