os-tenant-networks

This commit adds support for the os-tenant-networks extension.
diff --git a/openstack/compute/v2/extensions/tenantnetworks/requests.go b/openstack/compute/v2/extensions/tenantnetworks/requests.go
new file mode 100644
index 0000000..cd73479
--- /dev/null
+++ b/openstack/compute/v2/extensions/tenantnetworks/requests.go
@@ -0,0 +1,25 @@
+package tenantnetworks
+
+import (
+	"github.com/rackspace/gophercloud"
+	"github.com/rackspace/gophercloud/pagination"
+)
+
+// List returns a Pager that allows you to iterate over a collection of Network.
+func List(client *gophercloud.ServiceClient) pagination.Pager {
+	url := listURL(client)
+	createPage := func(r pagination.PageResult) pagination.Page {
+		return NetworkPage{pagination.SinglePageBase(r)}
+	}
+	return pagination.NewPager(client, url, createPage)
+}
+
+// Get returns data about a previously created Network.
+func Get(client *gophercloud.ServiceClient, id string) GetResult {
+	var res GetResult
+	_, res.Err = client.Request("GET", getURL(client, id), gophercloud.RequestOpts{
+		JSONResponse: &res.Body,
+		OkCodes:      []int{200},
+	})
+	return res
+}