Rich Probe Control from Python

[ThatWileyGuy]

Today, a probing move is defined in the path planner as a move that terminates early when all moving axes are blocked. To enable more probe-like scenarios, the path planner API needs to include...

• which axes need to be blocked to stop the move
• whether all axes being blocked or any one axis being blocked will stop the move
• reporting back which axis/axes actually stopped the move

This will enable scenarios like probing to check the correctness of a bed leveling matrix (probe moves are XYZ-moves, but any one axis from XYZ should stop them) or probing on any single axis (not necessarily Z).