MorJS 插件示例 类型声明

可以参考该 tsconfig.json 示例：

{
  "compilerOptions": {
    "declaration": true,
    "target": "ES5",
    "importHelpers": true,
    "module": "CommonJS",
    "moduleResolution": "Node",
    "rootDir": "./src",
    "outDir": "./lib",
    "lib": ["ES6", "ESNext", "DOM"]
  },
  "include": ["src"]
}