Allow to sort on nested properties

[noirbizarre]

Hi!

I'm lacking sorting on nesting property (and potentialy search on).

Imagine the following objects:

let data = [
    {name: 'John Doe', metrics: {a: 15, b:17}},
    {name: 'Jane Doe', metrics: {a: 18, b:2}}
];

I want to be able to write:

let s = new Sifter(data).search('', {
    fields: [],
    sort: [{field: 'metrics.a', direction: 'asc'}]
});

Is there a way to do this today ?