Dialog convenience buttons

[vaporstack]

I'm not sure if this is easy or possible, but supplying default values "ok" "cancel" to an ESTK dialog will automatically dismiss it with the correct return value, it might be a useful convenience to provide similar functionality for createDialog? Not sure how this is implemented internally in ScriptUI but maybe worth thinking about.

[vaporstack]

Disregard, found how to do this in the examples.