Rewrite of the place (platform/siding) and car labelling code.
Removes much dead code and cleans up the rest.
Visuals neatened up too - vertical lines are bordered the same as the text, positioning fixed so no more overlapping labels.
git-svn-id: http://svn.uktrainsim.com/svn/openrails/trunk@1712 a9f3cfff-6c41-7446-b0ca-052bd761e6eb