[pygame] Trapezoid function for Pygame

[Farai Aschwanden <fash@xxxxxxxxxx>]

Hello

I let once build a function for Pygame that allows to transform a  
rectangle into a trapezoid. Its quite fast and works stable. I dont  
know who in this mail group is working in the Pygame group but I can  
offer that function so it could be added once into any Pygame version.
You can use this function f.e. in 2D games adding a depth to a object  
(image).

Greetings
Farai