overide buildin Matlab colorbar function
Syntax
% add a colorbar with title
mtexColorbar('title','misorientation angle')% add a colorbar vertical colorbar
mtexColorbar('location','eastoutside')% add a horizontal colorbar
mtexColorbar('location','southoutside')% add one colorbar for all sub figures
setColorRange('equal') % set equal color range for all subplots
mtexColorbar % add the color bar% add individual colorbars for all sub figures
mtexColorbar('multiple')