Add a way to extends Convertor

With the new customConvertor parameter, enabling usage of… a custom convertor, how to easily “extends” default one ?

I think it will be nice to be able to import Convertor, so we could write something like

import { Convertor } from 'tui-editor'

class MyConvertor extends Convertor {
    toHTML(string) {
        let toHTML = super.toHTML(string)
        /* Do custom stuff */
        return toHTML
    }
}

Is it possible, or is there already any way to do something like that ?

Version

1.4.6

Test Environment

Does not apply

Current Behavior

Does not apply

[dala00]

I also need. I want to use default Convertor and convert markdown before converted to HTML.

When I convert html of around code in previewBeforeHook, the code highlight is not enabled there. So I need to convert markdown before converted.

Or I want convertBeforeHook

[dala00]

No, we may want to convert when body changed immediately. So handler is needed.