clutter: Add virtual input device API

Virtual input devices aim to enable injecting input events as if they
came from hardware events. This is useful for things such as remote
controlling, for example via a remote desktop session.

The API so far only consists of stumps.

https://bugzilla.gnome.org/show_bug.cgi?id=765009

clutter/clutter/evdev/clutter-virtual-input-device-evdev.h

@@ -0,0 +1,35 @@
+/*
+ * Clutter.
+ *
+ * An OpenGL based 'interactive canvas' library.
+ *
+ * Copyright (C) 2016  Red Hat Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Jonas Ådahl <jadahl@gmail.com>
+ */
+
+#ifndef __CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV_H__
+#define __CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV_H__
+
+#include "clutter-virtual-input-device.h"
+
+#define CLUTTER_TYPE_VIRTUAL_INPUT_DEVICE_EVDEV (clutter_virtual_input_device_evdev_get_type ())
+G_DECLARE_FINAL_TYPE (ClutterVirtualInputDeviceEvdev,
+                      clutter_virtual_input_device_evdev,
+                      CLUTTER, VIRTUAL_INPUT_DEVICE_EVDEV,
+                      ClutterVirtualInputDevice)
+
+#endif /* __CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV_H__ */