[feat] 简易鼠标驱动

include/devices/cursor.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <common.h>
+#include <graphics/layer.h>
+
+#define CURSOR_W 12
+#define CURSOR_H 16
+
+void cursor_init(void);
+void cursor_update(void);
+
+layer_t* cursor_get_layer(void);