Add e2e template to .gitignore (#72)

Author: joekr

.gitignore

@@ -47,4 +47,5 @@ test/e2e/data/infrastructure-oci/v1beta1/cluster-template-custom-networking-nsg.
 test/e2e/data/infrastructure-oci/v1beta1/cluster-template-multiple-node-nsg.yaml
 test/e2e/data/infrastructure-oci/v1beta1/cluster-template-local-vcn-peering.yaml
 test/e2e/data/infrastructure-oci/v1beta1/cluster-template-cluster-class.yaml
-test/e2e/data/infrastructure-oci/v1beta1/cluster-template-remote-vcn-peering.yaml
+test/e2e/data/infrastructure-oci/v1beta1/cluster-template-remote-vcn-peering.yaml
+test/e2e/data/infrastructure-oci/v1beta1/cluster-template-externally-managed-vcn.yaml