It doesn't support typeScript project

**这个新特性和一个问题相关吗？简单描述下，比如我什么场景下，需要解决什么问题，发现表格不支持这个功能**
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Could not find a declaration file for module 'vue-easytable'. 'c:/.../node_modules/vue-easytable/libs/index.js' implicitly has an 'any' type.\n Try `npm install @types/vue-easytable` if it exists or add a new declaration (.d.ts) file containing `declare module 'vue-easytable';`

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