connection should work left to right or right to left
Merge branch 'master' of https://github.com/pouzzler/IED-Logic-Simulator.git
change and resize icons
Merge branch 'master' of https://github.com/pouzzler/IED-Logic-Simulator.git
Merge branch 'master' of https://github.com/pouzzler/IED-Logic-Simulator.git
Merge branch 'master' of https://github.com/pouzzler/IED-Logic-Simulator.git
update valid / invalid connections