Display.sizeProperty does not use useDeepEquality

[zepumph]

Here is what the TinyProperty callsite currently looks like:

    // @public {Property.<Dimension2>} The (integral, > 0) dimensions of the Display's DOM element (only updates the DOM
    // element on updateDisplay())
    this.sizeProperty = new TinyProperty( new Dimension2( options.width, options.height ), {
      useDeepEquality: true
    } );

But TinyProperty doesn't take options, looking at the doc, I think this is what would actually be desired:

// @public {Property.<Dimension2>} The (integral, > 0) dimensions of the Display's DOM element (only updates the DOM
    // element on updateDisplay())
    this.sizeProperty = new TinyProperty( new Dimension2( options.width, options.height ) );
    this.sizeProperty.useDeepEquality = true;
    

@jonathanolson does this sound right to you? How bad is this bug? Do we still need useDeepEquality, as it hasn't been implemented here since the scenery conversion from Events.

[zepumph]

I removed the option above because it was blocking my work in #1131.

[jonathanolson]

It doesn't seem critical, however presumably we'd want useDeepEquality, so that we don't fire off all the changes when the size hasn't actually changed.

It looks like we're not calling it every frame, so we wouldn't see much of a penalty in sims right now.