Export `IOptions` type from the plugin

Hello!

Thank you for this great plugin!

However, right now, typing declarations are only exporting the plugin function, but not the other useful symbols, like options (i.e. IOptions).

The generated typing declarations are looking like this right now:

declare const typescript: PluginImpl<Partial<IOptions>>;
export default typescript;

As you can see you can’t import IOptions type directly from it. This makes advanced usage of the plugin harder.

export { IOptions } should fix it in the index.ts.

[ezolenko]

Sure, committed, could you try using github version directly (point npm at it, you should see 0.26.1 printed during build) and let me know if it does what you expect it to do?

[ezolenko]

In 0.27.0 now