NNetSimu 3.4

Version 3.4 of NNetSimu of NNetSimu was released on June 16 2022.

New features:
 * Import/Export EEG signals. When saving a model to disk, all signals from the EEG monitor are saved together with the model.
 * The Import/Export signals feature causes longer reading/writing times. The progress of the reading/writing process is now displayed in the status bar.
 * EEG monitor horizontal scrolling. See EEG monitor.
 * The signal generator assigned to input lines is now stored together with the model

Previous version: NNetSimu 3.3

Succeeding version: NNetSimu 3.5 (not yet released)