feat(layout)!: move /gl and /vk into rendering directory

as I was adding the audio module I realized it looks really ugly that
the audio-related stuff will be in its own directory and the renderer
modules will be scattered in root directory it makes way more sense this
way

Signed-off-by: Lorenzo Torres <lorenzo@sagittarius-a.org>

rendering/vk/physical_device.h

@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier:BSD-3-Clause */
+#ifndef PHYSICAL_DEVICE_H
+#define PHYSICAL_DEVICE_H
+
+#include "vk.h"
+#include "../../types.h"
+#include "../../core/vector.h"
+
+
+/*
+ * Get the list of all available devices and pick the best option.
+ */
+void vk_physical_device_pick(struct renderer_context *context);
+/*
+ * Get the list of all available device extensions and return a vector
+ * containing those.
+ */
+struct vector *vk_physical_device_get_extensions(struct renderer_context *context);
+/*
+ * The physical device is responsible of selecting the queue family indices,
+ * used later by the device to create the queues. This function sets the family
+ * indices in the renderer context.
+ */
+void vk_physical_device_select_family_indices(struct renderer_context *context);
+
+#endif