LOGistICAL

A small update to fix a few issues in NZ DLC. Some of the towns were impossible to do, but with the help of a dedicated tester we have managed to get through them all so you should be able to too.

* Fix issue with contract IDs
* Added stage 1 of a truck filter that filters by country
* Modified a couple of resources at a couple of NZ towns (this may cause you trucks to fly across space to get back to their spots once you start the game - no need to panic).