Added supply art and inf trucks. Changed behavior of some captured weapons.

Game version fix

- French Oerlikon AA gun replaced with original version

- You gain now points when capture the bridgehead
- Changed the final armored counter attack. The routes of tanks are now less predictable and tanks have now infantry support

- Removed some unnecessary obstacles and hence you can now carry Mortars and HMGs to bridgehead over the weir
- Added Pz-III. For gameplay purposes you have now some Pz-III tanks as a reinforcement when playing Easy (Note: It´s the F model with 50 mm gun - I know: not historically accurate...)