Usage
b-load works on its own, it doesn't require
component. It fires once, when the include's content has
arrived and any scripts or styles inside it are registered.
<div b-include="file:/widgets/chart.html"
b-load="$bindary.controller.initChart"></div>
ctrl.initChart = (templateItem) =>
{
// the file's markup, scripts and styles now exist on the page,
// this is the first safe point to touch anything inside it
};