Version 2
This version includes:
- works with all TLE5012B Sensor2Go evaluation boards using a 3-wire SPI
- new interface to switch on of UPDATE and SAFETY bits
- new functions to use up to 4 slaves on one SPI channel
- reading all registers
- includes more example for this new functions
- includes a libray documentation
- the reviewed 4-wire SPI library is still available (includes all outstanding pullrequests of version 1) for bulk sensors