sync_plan_position for all type of mechanism

[MagoKimbra]

Create one sync_plan_position for all type of mechanism...

[ghost]

I got a strange behavior with this PR.
When I run G28, vertical carriages dosn't stop on endstops.
and when one of the three carriages touch a endstop, three carriages start go down simultaneously for some reason.
Finally, nozzle crash into the bed and it doesn't stop.

Video clip:

Incidentally, this strange behavior is completely the same as my foozlified PR #137(Asinine follow-up the PR #3955 (Fix M428 width DELTA & SCARA)).
In my opinion, we made an oversight something, but I don't understand what is it for the time being.

[MagoKimbra]

Yes the problem is the normal fase of home, delta during the home single axes use cartesian sync_plan_position... I close this...