Create ServoModule.

Signed-off-by: Wilbert Alberts <wilbert.alberts@gmail.com>
Refactor CmdUpdateFrequency; derive from ServoModule.

Signed-off-by: Wilbert Alberts <wilbert.alberts@gmail.com>
Refactor DigitalIn: base on ServoModule
Refactor DigitalOut: base on ServoModule
Refactor Motor: base on ServoModule.
Refactor Controller: base on ServoModule.
Merge branch 'master' into ServoModule

Conflicts:
	Servo/src/CmdUpdateFrequency.cpp
	Servo/src/CmdUpdateFrequency.h
	Servo/src/Controller.cpp
	Servo/src/Controller.h
	Servo/src/Motor.cpp
	Servo/src/Motor.h
	Servo/src/ServoModule.cpp
	Servo/src/ServoModule.h
	Servo/src/main.cpp