provide an ES6 tiny-inflate.esm.js version

Could you provide an ES6 Module version like
https://github.com/code4fukui/tiny-inflate-es/blob/es/tinf_uncompress.js#L315 (which is not on NPM)

so we could use it like

```js
import { tinf_uncompress } from './tiny-inflate.esm.js';
```

in both nodejs and browser environment