Attribute masks for motion

Enumerator:
RSIMotionAttrMaskAPPEND  Append motion.
RSIMotionAttrMaskAUTO_START  Auto Start.
RSIMotionAttrMaskDELAY  Delay.
RSIMotionAttrMaskID  ID.
RSIMotionAttrMaskELEMENT_ID  Element ID.
RSIMotionAttrMaskRELATIVE  Relative.
RSIMotionAttrMaskSYNC_END  Synchronize end of motion for all axes.
RSIMotionAttrMaskSYNC_START  Synchronize start of motion for all axes.
RSIMotionAttrMaskREPEAT  Repeat.
RSIMotionAttrMaskMASTER_START  Master Start.
RSIMotionAttrMaskNO_BACKTRACK  No Backtrack.
RSIMotionAttrMaskNO_BACKTRACK_HOLD  No Backtrack Hold.
RSIMotionAttrMaskEVENT  Event.
RSIMotionAttrMaskFINAL_VEL  Final Vel.
RSIMotionAttrMaskNO_REVERSAL  No Reversal.
RSIMotionAttrMaskHOLD  Hold.
RSIMotionAttrMaskHOLD_LESS  Hold (less than).
RSIMotionAttrMaskHOLD_GREATER  Hold (greater than).
RSIMotionAttrMaskOUTPUT  Output.