NNetSimu 4.2

Version 4.2 of NNetSimu was released on Jan 15 2022.

This version is a bug fix version.
 * When saving the model, the precision of coordinates was to small. Lines with greater distance from the origin (0, 0) collapsed to a single point. The output precision es bigger now.
 * In addition the import routine checks for collapsed lines and fixes them by relocating the end point

Previous version: NNetSimu 4.1

Succeeding version: NNetSimu 4.3