fichier: 1fichier support - fixes #2908

This was started by Fionera, finished off by Laura with fixes and more
docs from Nick.

Co-authored-by: Fionera <fionera@fionera.de>
Co-authored-by: Nick Craig-Wood <nick@craig-wood.com>

backend/fichier/fichier_test.go

@@ -0,0 +1,17 @@
+// Test 1Fichier filesystem interface
+package fichier
+
+import (
+	"testing"
+
+	"github.com/ncw/rclone/fs"
+	"github.com/ncw/rclone/fstest/fstests"
+)
+
+// TestIntegration runs integration tests against the remote
+func TestIntegration(t *testing.T) {
+	fs.Config.LogLevel = fs.LogLevelDebug
+	fstests.Run(t, &fstests.Opt{
+		RemoteName: "TestFichier:",
+	})
+}