添加miku立绘（据vocaloidvictory说这张图可以使用）

main.lua

@@ -144,6 +144,7 @@ IMG.init{
     miyaF4='media/image/characters/miya_f4.png',
     nakiCH='media/image/characters/nakiharu.png',
     xiaoyaCH='media/image/characters/xiaoya.png',
+    mikuCH='media/image/characters/miku.png',
     electric='media/image/characters/electric.png',
     hbm='media/image/characters/hbm.png',
 

parts/scenes/setting_sound.lua

@@ -64,6 +64,8 @@ function scene.draw()
         gc.draw(IMG.nakiCH,-30)
     elseif cv=="xiaoya"then
         gc.draw(IMG.xiaoyaCH,-30)
+    elseif cv=="miku"then
+        gc.draw(IMG.mikuCH,-30)
     end
     gc.translate(-x,-y)
 end