[FEATURE] AnimationLoaded event provide animation infromation

[adessables]

Is your feature request related to a problem? Please describe.

I wanted to know get the size of the canvas the Lottie was rendered on without having to peek at the json file.

Describe the solution you'd like

It would be nice if the event had an EventArgs type that gave us information about the animation. For my case it would be the size of the cavas.

Describe alternatives you've considered

Make an EventArgs type that is a dump of some useful information about the animation and the canvas.