feat: 添加壁纸功能

src/wallpaper.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <stdint.h>
+#include <xcb/xproto.h>
+#include "types.h"
+
+typedef struct wallpaper_context_t wallpaper_context_t;
+
+typedef struct wallpaper_config_t {
+  uint32_t interval;
+  uint32_t path_count;
+  char **paths;
+  xcb_screen_t *screen;
+  xcb_connection_t *conn;
+  monitor_t *monitors;
+} wallpaper_config_t;
+
+wallpaper_context_t *wallpaper_init(wallpaper_config_t config);
+void wallpaper_clean(wallpaper_context_t *context);