[WIP] Make Chosen more extendable

[koenpunt]

After keeping my PR for option adding (#166) up to date for over 2 years I got a suggestion from @mculp: koenpunt#38.

And by extracting more code into separate methods extending Chosen should become a breeze.

[stof]

you should extract it in the Prototype version too, to stay consistent

[koenpunt]

You're right! Would've come to that when testing extending the prototype version. For now will mark this WIP

[lephyrius]

👍
This would simplify a lot of things.

[davereid]

👍 This would be great to have official support for the new option code @koenpunt is working on without having to use a separate fork.

[pfiller]

A more modularized Chosen would let us build on things like AJAX searching or option adding without polluting the base functionality. I'm 100% in support of this general idea and this seems like a good first step. @koenpunt what else do you think needs to happen here before it's useful to you?

[mculp]

👍

[AlJohri]

👍 @koenpunt

[pfiller]

In an effort to clean up Chosen's PRs once and for all, @koenpunt and I just decided to close this one. Making Chosen more extendable would solve a lot of the issues people have with it, but this change is difficult to make without breaking most of the open PRs we're looking at.

We're not saying no forever, but we are saying no for now. As Koen says, "for a better future".