Made getIrrDevicde() method static to allow getting the Irrlicht Device object also inside static functions like the render function.
Made getIrrDevicde() method static to allow getting the Irrlicht Device object also inside static functions like the render function.

ZahlGraf/IrrIMGUI,ZahlGraf/IrrIMGUI,ZahlGraf/IrrIMGUI,ZahlGraf/IrrIMGUI