bob.ip.draw_... methods take arguments in wrong order

Created by: siebenkopf

Usually, points in Bob are given in (y,x) order, and functions always take (y,x) as arguments (in this order). Having a look at the documentation of the bob.ip.draw_point (and similar) functions, they take arguments in order (x,y).

A fix of this would be nice, to have a consistent order of arguments in Bob.