优化第一阶段

lib/plugins/sprite/index.js

@@ -0,0 +1,10 @@
+async function run() {
+  throw new Error("尚未实现");
+}
+
+export default {
+  id: "sprite",
+  name: "Sprite图集",
+  desc: "合并精灵图集",
+  run,
+};