Improve on Z_AFTER_PROBING

[classicrocker883]

Description

More details will come later -
for now, this replaces Z_AFTER_PROBING from essentially an int to a bool

• Add Voxelab Aquila (GD32F103RC) to tests
• change platform / platform_packages which use less flash

Requirements

Benefits

Configurations

Added to Conditionals-3-etc.h #ifndef Z_AFTER_HOMING so that it is enabled automatically when UBL is enabled automatically - with conditions

Related Issues

before, in motion.cpp, probe.move_z_after_probing() in void do_move_after_z_homing() couldn't be used since Z_POST_CLEARANCE was always defined before. so it was moved ahead.

(original)

  void do_move_after_z_homing() {
    DEBUG_SECTION(mzah, "do_move_after_z_homing", DEBUGGING(LEVELING));
    #ifdef Z_POST_CLEARANCE
      do_z_clearance(
        Z_POST_CLEARANCE,
        ALL(HOMING_Z_WITH_PROBE, HAS_STOWABLE_PROBE) && TERN0(HAS_BED_PROBE, endstops.z_probe_enabled),
        true
      );
    #elif ENABLED(USE_PROBE_FOR_Z_HOMING)
      probe.move_z_after_probing();
    #endif
  }

[classicrocker883]

These may or may not need to be enabled no matter what (as they were before):

[gcode/probe/G30.cpp‎]
[gcode/bedlevel/abl/G29.cpp]
[feature/bedlevel/ubl/ubl_G29.cpp‎]