Overhaul of the planner (#11578)

- Move FWRETRACT to the planner
- Combine leveling, skew, etc. in a single modifier method
- Have kinematic and non-kinematic moves call one planner method

Marlin/src/gcode/geometry/G92.cpp

@@ -92,7 +92,7 @@ void GcodeSuite::G92() {
       COPY(coordinate_system[active_coordinate_system], position_shift);
   #endif
 
-  if    (didXYZ) SYNC_PLAN_POSITION_KINEMATIC();
+  if    (didXYZ) sync_plan_position();
   else if (didE) sync_plan_position_e();
 
   report_current_position();