Render the player's name above their sprite

A very modest change. I realized that text is automatically drawn with entities that have Text and GlobalTransform (and a few other components.

We already have a GlobalTransform from the SpriteBundle so I eventually realized the best way to keep things in sync would be to add the text component as a child of the Player entity.

tonarino / bomberman-of-the-hill

Render the player's name above their sprite #20