Added funny Dude sample

[cx20]

I noticed that the Bones and Skeletons documentation has a lot of funny examples.

Bones and Skeletons | Babylon.js Documentation

I have come up with some examples that utilize the Dude model.

Titie : Rotate Dude’s eyeballs
https://playground.babylonjs.com/#4E6PNF#2

Title : Dude color variations
https://playground.babylonjs.com/#0M1D97#13

Title : Pixel art with Dude
https://playground.babylonjs.com/#S94EI1#2

[cx20]

I learned that this model can move the eyelids, so I made a new sample.

Title : Dude moving his eyelids
https://playground.babylonjs.com/#4E6PNF#3