NEW: add best_object_pos for auto-arranging

For i3 printers, best object position may not be the bed center,
we need to align objects to the specified best_object_pos.

Jira: STUDIO-4133

Change-Id: I06e31e597d2dd8288eb24a52d836cc8a134a4111

resources/profiles/BBL/machine/Bambu Lab A1 mini 0.4 nozzle.json

@@ -50,10 +50,8 @@
         "179"
     ],
     "printer_structure": "i3",
-    "retract_lift_below": [
-        "179"
-    ],
     "scan_first_layer": "0",
+    "best_object_pos":"0.85x0.5",
     "upward_compatible_machine": [
         "Bambu Lab P1S 0.4 nozzle",
         "Bambu Lab P1P 0.4 nozzle",

resources/profiles/BBL/machine/Bambu Lab P1P 0.4 nozzle.json

@@ -31,7 +31,6 @@
     "z_hop": [
         "0.4"
     ],
-    "printer_structure": "corexy",
     "upward_compatible_machine": [
         "Bambu Lab P1S 0.4 nozzle",
         "Bambu Lab X1 0.4 nozzle",

resources/profiles/BBL/machine/Bambu Lab P1S 0.4 nozzle.json

@@ -30,7 +30,6 @@
     "z_hop": [
         "0.4"
     ],
-    "printer_structure": "corexy",
     "upward_compatible_machine": [
         "Bambu Lab P1P 0.4 nozzle",
         "Bambu Lab X1 0.4 nozzle",

resources/profiles/BBL/machine/Bambu Lab X1 0.4 nozzle.json

@@ -31,7 +31,6 @@
     "z_hop": [
         "0.4"
     ],
-    "printer_structure": "corexy",
     "upward_compatible_machine": [
         "Bambu Lab P1S 0.4 nozzle",
         "Bambu Lab P1P 0.4 nozzle",

resources/profiles/BBL/machine/fdm_bbl_3dp_001_common.json

@@ -107,6 +107,8 @@
     "extruder_clearance_max_radius": "68",
     "extruder_clearance_height_to_lid": "90",
     "nozzle_volume": "107",
+    "printer_structure": "corexy",
+    "best_object_pos":"0.5x0.5",
     "retraction_minimum_travel": [
         "1"
     ],