Improve coding style

[garzfaust]

• Consistent amount of empty lines in between. Sometimes there are too many, sometimes there are too little. Pay attention to what your eye says feels good when you look at the code.
• Consistent amount of spaces. Sometimes it is if(..), sometimes it is if ().
• There are typos like RestControllRegister which would like to be named ResetControllRegister or ControllUnit which would like to be named ControlUnit
• Some variable names are too short like ControllUnit cu
• Classes are written in CamelCase, but variable names with underscores _. There should be a consistent style.