Make array collapsible

[eznix86]

Amazing work!

But sometimes when you have a big object or array, you have to scroll a lot. It should be nice if it was collapsible.

[rodber]

I also authored the vardump component in charge of provide variable instrospection for xrdebug/php and there's an ongoing issue regarding this: chevere/var-dump#5

[rodber]

xrDebug 2.0 supports this.