[Engine] [Display] PlayerCamera: display sprites

[Niwils]

The player camera shall be able to display animated sprites, return the tiles coordinates of the model from a click within the window (not on a menu window)

• Support NW, NE, SW, SE points-of-view.

[Niwils]

On the 22nd of June: map sprites are displayed and camera can move. However, there is an issue regarding the window-to-model transform.