update usb.bit from /proj/config/vbc
Merge branches 'feature/usb-rigid-tap' and 'feature/usb-rigid-tap' of github.com:araisrobo/linuxcnc into feature/usb-rigid-tap
wou_stepgen.c: bypass limit_switch_positive/negative
Merge branch 'feature/usb-rigid-tap' of github.com:araisrobo/linuxcnc into feature/usb-rigid-tap