Feature/filestorage securityservices create (#132)

* sfs: Add support for security services Create

* sfs: Add acceptance tests for security service Create

* sfs: Fix comments
diff --git a/acceptance/openstack/sharedfilesystems/v2/securityservices_test.go b/acceptance/openstack/sharedfilesystems/v2/securityservices_test.go
new file mode 100644
index 0000000..8ef917c
--- /dev/null
+++ b/acceptance/openstack/sharedfilesystems/v2/securityservices_test.go
@@ -0,0 +1,23 @@
+package v2
+
+import (
+	"testing"
+
+	"github.com/gophercloud/gophercloud/acceptance/clients"
+)
+
+func TestSecurityServiceCreate(t *testing.T) {
+	client, err := clients.NewSharedFileSystemV2Client()
+	if err != nil {
+		t.Fatalf("Unable to create shared file system client: %v", err)
+	}
+
+	securityService, err := CreateSecurityService(t, client)
+	if err != nil {
+		t.Fatalf("Unable to create security service: %v", err)
+	}
+
+	// TODO: Delete the security service once Delete is supported
+
+	PrintSecurityService(t, securityService)
+}