refactoring Parking und MoveToGap
refactoring GapCalculator
refactoring ParallelController und Parking, 
delete PositionController
refactoring DrivenIntoGap
delete ParkingController
voltage initialisiert
Merge branch 'master' of https://github.com/razinanu/ottocar

Conflicts:
	src/ottocar_einparken/CMakeLists.txt
	src/ottocar_einparken/DriveIntoGap.cpp
	src/ottocar_einparken/GapCalculator.cpp
	src/ottocar_einparken/GapCalculator.h
	src/ottocar_einparken/MoveToGap.cpp
	src/ottocar_einparken/MoveToGap.h
	src/ottocar_einparken/Parking.cpp
Alles nochmal refactored