feedback-vibra: Add support for patterns

Add a new class that takes an array of durations and magnitudes.
A magnitude of 0 indicates a pause.

We can consider dropping the VibraRumble class at some point as that
is a special case of VibraPeriodic now however as the feedbacks are
encoded in the themes let's make sure VibraPattern is good API before
deprecating VibraRumble.

Signed-off-by: Guido Günther <agx@sigxcpu.org>

src/fbd-feedback-vibra-pattern.h

@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2024 The Phosh Developers
+ *
+ * SPDX-License-Identifier: GPL-3.0+
+ */
+#pragma once
+
+#include "fbd-feedback-vibra.h"
+
+G_BEGIN_DECLS
+
+#define FBD_TYPE_FEEDBACK_VIBRA_PATTERN (fbd_feedback_vibra_pattern_get_type())
+
+G_DECLARE_FINAL_TYPE (FbdFeedbackVibraPattern, fbd_feedback_vibra_pattern, FBD,
+		      FEEDBACK_VIBRA_PATTERN,
+		      FbdFeedbackVibra);
+
+FbdFeedbackVibraPattern *fbd_feedback_vibra_pattern_new (GArray *magnitudes, GArray *durations);
+
+G_END_DECLS