Motor driver for the xHuber SMC9300, courtesy of Dongliang Yang (noya269@126.com).
This is an improved version of what Dongliang provided. In particular SMC9300Axis::poll
- add a new parameter for the messge text that comes from the controller
- parse pC_->inString_ using sscanf and check that the reply has all the expected
parameters
- make usre that the whole poll is executed. For some reason the original version
did not update the position during the movement
