* fix for stepperHbridgeHardware
* new config fields for microstepping
* add stepper dir pin mode to the dialog
* refactor stepper hw dialog & add microstepping panel
* microstepper modes enum
* stepperDcInvertedPins needed by Hellen
* add sleep() for stepper and divisor for pause()
* microstepping impl.
* make unit-tests more happy
* small progress
* fix etb-stepper dlg conflict
Co-authored-by: Andrei <andreikagit@users.noreply.github.com>