Rename v2_0 and add remaining boilerplate
diff --git a/openstack/networking/v2/networks/doc.go b/openstack/networking/v2/networks/doc.go
new file mode 100644
index 0000000..83c4a6a
--- /dev/null
+++ b/openstack/networking/v2/networks/doc.go
@@ -0,0 +1 @@
+package networks