Suggestion - Setting for custom output elements

[AforDesign]

First of all, thank you for this awesome class.

I have a request / suggestion for a future enhancement:
It would be nice to be able to overrule the html output via the settings.

For example:
I stumbled upon a performance issue when dealing with a list of 1500 items including image previews.
Allthough the image are only a few kb, i t's quite a performance hit.
Therefor I needed to lazy-load them.
To be able to do that I had to modify the source code.

 // Check for Attachment
 if (optionImg) {
    var has_attachment = "<img data-src=" + optionImg + " class='lazyload'>";
} 

No big deal ofcourse, but it would be super nice if such alteration could be added to the settings object.

[BMSVieira]

Hey there!

It is actually a really good sugestion, it might take a while since im running short on time, but i will do that.
Be welcome to open a PR!

Have a nice day!

[AforDesign]

Thanks in advance!
Great to here you like such a feature.

Like you, I'm short on time too.
If I'm more or less back on schedule I can look into opening a PR.