Add prime tower and extruder switch position

CURA-1774

resources/definitions/ultimaker_original_dual.def.json

@@ -70,7 +70,17 @@
         "machine_end_gcode": {
             "default_value": "M104 S0 ;extruder heater off\nM140 S0 ;heated bed heater off (if you have it)\nG91 ;relative positioning\nG1 E-1 F300  ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+0.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way\nM84 ;steppers off\nG90 ;absolute positioning"
         },
-        "machine_extruder_count": { "default_value": 2 },
-        "print_sequence": {"enabled": false}
+        "machine_extruder_count": {
+            "default_value": 2
+        },
+        "print_sequence": {
+            "enabled": false
+        },
+        "prime_tower_position_x": {
+            "default_value": 185
+        },
+        "prime_tower_position_y": {
+            "default_value": 175
+        }
     }
 }

resources/extruders/ultimaker_original_dual_left.def.json

@@ -1,6 +1,6 @@
 {
     "id": "ultimaker_original_dual_left",
-    "version": 2, 
+    "version": 2,
     "name": "Left Extruder",
     "inherits": "fdmextruder",
     "metadata": {
@@ -14,6 +14,13 @@
             "maximum_value": "1"
         },
         "machine_nozzle_offset_x": { "default_value": 0.0 },
-        "machine_nozzle_offset_y": { "default_value": 0.0 }
+        "machine_nozzle_offset_y": { "default_value": 0.0 },
+
+        "machine_extruder_start_pos_abs": { "default_value": true },
+        "machine_extruder_start_pos_x": { "default_value": 185 },
+        "machine_extruder_start_pos_y": { "default_value": 155 },
+        "machine_extruder_end_pos_abs": { "default_value": true },
+        "machine_extruder_end_pos_x": { "default_value": 185 },
+        "machine_extruder_end_pos_y": { "default_value": 155 }
     }
 }

resources/extruders/ultimaker_original_dual_right.def.json

@@ -1,6 +1,6 @@
 {
     "id": "ultimaker_original_dual_right",
-    "version": 2, 
+    "version": 2,
     "name": "Right Extruder",
     "inherits": "fdmextruder",
     "metadata": {
@@ -14,6 +14,13 @@
             "maximum_value": "1"
         },
         "machine_nozzle_offset_x": { "default_value": 0.0 },
-        "machine_nozzle_offset_y": { "default_value": 21.6 }
+        "machine_nozzle_offset_y": { "default_value": 21.6 },
+
+        "machine_extruder_start_pos_abs": { "default_value": true },
+        "machine_extruder_start_pos_x": { "default_value": 213 },
+        "machine_extruder_start_pos_y": { "default_value": 189 },
+        "machine_extruder_end_pos_abs": { "default_value": true },
+        "machine_extruder_end_pos_x": { "default_value": 213 },
+        "machine_extruder_end_pos_y": { "default_value": 189 }
     }
 }