Tank pieces tool rework

Plastic tank pieces made for the game Tank Chess are also intended for premium variants of the games Panzer Strike 1 and 2. The two tools were, with many problems and several delays, completed in June and December 2018. During the exploitation, the tools were often returned for refinements. For the needs of the Panzer Strike 1 and 2 games, two more pieces had to be inserted into the tool: an anti aircraft tank and a truck. That alteration took an unjustifiably long time, so we only recently got the requested series of pieces.