Wait for the toolchange temperature on the wipe tower

Adds a printer option that picks up the new tool without a blocking temperature
wait, travels to the wipe tower, and waits there right before purging, parked
beside the tower so the ooze from the heat-up lands next to it rather than on the
model. The incoming filament's target is raised ahead of the tool change, so the
heat-up overlaps both the change itself and the travel to the tower.

Off by default, and only offered for multi-extruder printers using a Type 2 wipe
tower; the generic toolchanger profile enables it.

resources/profiles/Custom.json

@@ -1,6 +1,6 @@
 {
 	"name": "Custom Printer",
-	"version": "02.04.00.02",
+	"version": "02.04.00.03",
 	"force_update": "0",
 	"description": "My configurations",
 	"machine_model_list": [

resources/profiles/Custom/machine/fdm_toolchanger_common.json

@@ -6,6 +6,7 @@
 	"instantiation": "false",
 	"gcode_flavor": "klipper",
 	"single_extruder_multi_material": "0",
+	"wait_for_temp_on_wipe_tower": "1",
 	"default_filament_profile": [
 		"Generic PLA @MyToolChanger"
 	],