More preparations for axle_load

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7025 8aca7d54-2c30-db11-9de9-000461428c89
More preparations for axle_load (wrong file makeobj submitted) ...

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7026 8aca7d54-2c30-db11-9de9-000461428c89
wrong offset in makeobj ...

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7027 8aca7d54-2c30-db11-9de9-000461428c89