encoder.c: user hm2->encoder_base to monotonically increase encoder numbers
encoder.c: user hm2->encoder_base to monotonically increase encoder numbers

otherwise muxed and unmuxed encoder names would collide

strahlex/machinekit,strahlex/machinekit,mhaberler/machinekit,ArcEye/MK-Qt5,mhaberler/machinekit,mhaberler/machinekit,ArcEye/MK-Qt5,strahlex/machinekit,mhaberler/machinekit,strahlex/machinekit,ArcEye/MK-Qt5,ArcEye/MK-Qt5,ArcEye/MK-Qt5,strahlex/machinekit,ArcEye/MK-Qt5,strahlex/machinekit,mhaberler/machinekit,mhaberler/machinekit,ArcEye/MK-Qt5,mhaberler/machinekit,strahlex/machinekit,ArcEye/MK-Qt5,mhaberler/machinekit