Release of Version 1.4.0

Additional ADC and PWM on XMC2Go board ports:
Pin 1 -> MISO and PWM
Pin 2 -> SCK and PWM
Pin 3 -> SS and PWM
Pin 10 -> SCL and analog (A3)
Pin 11 -> SDA and analog (A2)
Pin 12 -> analog (A1)
Pin 13 -> analog (A0)