Updated to v1.352

extended moduls functions

• added 35 modules to now 56, mostly basic structures and some complete bridge parts.

• new function to create your own modules from copied structure. select components by "copy", then "add new module", name it.

• fixed a bug that prevented from deleting or modifying pasted beams.

• reduced trucks weight.

• modified -beginner / level 2 to fix problems with pushing the box through the tunnel.