Working on model railway

Real world working with three signals:

First alpha for Teensy and win64

Included features
General

• Works with win64 platform and z21start
• Works with Teensy 4.1 platform and z21start

Railway features

• Set turnouts and receive turnout updates
• Set signals according to turnouts (signal turns red if turnout in path would let train derail)

Webinterface

• Layout graph editing and storing on system