add nor and xnor gates and make use of all and any functions
add remove from engine feauture in the gui
add multilog support + add some GUI features
widget for the settings
add support for the settings widget
settings are now stored in a config file
settings are stored in this file
Revert "settings are now stored in a config file"

This reverts commit 0e753ed3c8e686ebfc8065a24be972e0444b5e50.
settings are now stored in a config file
settings are now stored in a config file