Preliminary implementation of showing siding names (F6) and train car numbers for player train and loose consist (F7). Added LinePrimitive and material for drawing 2D lines in general. Added SidingObj etc to read Sidings from W files and store them into sidings list. Added train height, also CarID to display.
Future improvement: adjust the placement of numbers and names so they show nicely, instead of overlapping.
git-svn-id: http://svn.uktrainsim.com/svn/openrails/trunk@699 a9f3cfff-6c41-7446-b0ca-052bd761e6eb