Plotfunktionen hinzugefügt

plot.py BspSurface.srf plotts surfaces in BspSurface.srf. Press Space for next surface.
Added printSurface_1_1 and changed minitopsim.py. If parameter DISPLAY_SURFACE is set true
surfaces will be plotted at the end of the programm. To get to the next plot press space.
Merge https://github.com/hobler/miniTopSim
Added plot functions

plot.py BspSurface.srf plotts surfaces in BspSurface.srf. Press Space for next surface.
Added printSurface_1_1 and changed minitopsim.py. If parameter DISPLAY_SURFACE is set true
surfaces will be plotted at the end of the programm. To get to the next plot press space.