lib/process/convert/elements/animation/dataAttributes/extendedKeys/keyframing.js
function addFrameAt(time, value, delay, array)
{
	array.push({ time:time, value:value, delay:delay });
}
function addFrameAt(time, value, delay, array)
{
	array.push({ time:time, value:value, delay:delay });
}
`delay` only used for debugging