Single extrusion settings for travels

Updated single extrusion settings, so z hops are removed and travels are shortened for single extrusion.

resources/definitions/ultimaker3.def.json

@@ -126,7 +126,7 @@
         "retraction_count_max": { "value": "10" },
         "retraction_extrusion_window": { "value": "1" },
         "retraction_hop": { "value": "2" },
-        "retraction_hop_enabled": { "value": "True" },
+        "retraction_hop_enabled": { "value": "extruders_enabled_count > 1"  },
         "retraction_hop_only_when_collides": { "value": "True" },
         "retraction_min_travel": { "value": "5" },
         "retraction_prime_speed": { "value": "15" },
@@ -150,7 +150,7 @@
         "switch_extruder_prime_speed": { "value": "15" },
         "switch_extruder_retraction_amount": { "value": "8" },
         "top_bottom_thickness": { "value": "1" },
-        "travel_avoid_distance": { "value": "3" },
+        "travel_avoid_distance": { "value": "3 if extruders_enabled_count > 1 else machine_nozzle_tip_outer_diameter / 2 * 1.5" },
         "wall_0_inset": { "value": "0" },
         "wall_line_width_x": { "value": "round(wall_line_width * 0.3 / 0.35, 2)" },
         "wall_thickness": { "value": "1" },

resources/quality/ultimaker3/um3_aa0.25_PC_Normal_Quality.inst.cfg

@@ -33,7 +33,6 @@ raft_airgap = 0.25
 raft_interface_thickness = =max(layer_height * 1.5, 0.225)
 retraction_count_max = 80
 retraction_hop = 2
-retraction_hop_enabled = True
 retraction_hop_only_when_collides = True
 retraction_min_travel = 0.8
 retraction_prime_speed = 15

resources/quality/ultimaker3/um3_aa0.25_PP_Normal_Quality.inst.cfg

@@ -37,7 +37,6 @@ retraction_count_max = 6
 retraction_extra_prime_amount = 0.2
 retraction_extrusion_window = 6.5
 retraction_hop = 2
-retraction_hop_enabled = True
 retraction_hop_only_when_collides = True
 retraction_min_travel = 0.8
 retraction_prime_speed = 13

resources/quality/ultimaker3/um3_aa0.4_PC_Draft_Print.inst.cfg

@@ -43,7 +43,6 @@ raft_interface_thickness = =max(layer_height * 1.5, 0.225)
 retraction_count_max = 80
 retraction_extrusion_window = 1
 retraction_hop = 2
-retraction_hop_enabled = True
 retraction_hop_only_when_collides = True
 retraction_min_travel = 0.8
 retraction_prime_speed = 15

resources/quality/ultimaker3/um3_aa0.4_PC_Fast_Print.inst.cfg

@@ -42,7 +42,6 @@ raft_interface_thickness = =max(layer_height * 1.5, 0.225)
 retraction_count_max = 80
 retraction_extrusion_window = 1
 retraction_hop = 2
-retraction_hop_enabled = True
 retraction_hop_only_when_collides = True
 retraction_min_travel = 0.8
 retraction_prime_speed = 15

resources/quality/ultimaker3/um3_aa0.4_PC_High_Quality.inst.cfg

@@ -43,7 +43,6 @@ raft_interface_thickness = =max(layer_height * 1.5, 0.225)
 retraction_count_max = 80
 retraction_extrusion_window = 1
 retraction_hop = 2
-retraction_hop_enabled = True
 retraction_hop_only_when_collides = True
 retraction_min_travel = 0.8
 retraction_prime_speed = 15

resources/quality/ultimaker3/um3_aa0.4_PC_Normal_Quality.inst.cfg

@@ -40,7 +40,6 @@ raft_interface_thickness = =max(layer_height * 1.5, 0.225)
 retraction_count_max = 80
 retraction_extrusion_window = 1
 retraction_hop = 2
-retraction_hop_enabled = True
 retraction_hop_only_when_collides = True
 retraction_min_travel = 0.8
 retraction_prime_speed = 15

resources/quality/ultimaker3/um3_aa0.4_PP_Draft_Print.inst.cfg

@@ -44,7 +44,6 @@ retraction_count_max = 12
 retraction_extra_prime_amount = 0.8
 retraction_extrusion_window = 1
 retraction_hop = 2
-retraction_hop_enabled = True
 retraction_hop_only_when_collides = True
 retraction_min_travel = 0.8
 retraction_prime_speed = 18
@@ -60,7 +59,6 @@ support_angle = 50
 switch_extruder_prime_speed = 15
 switch_extruder_retraction_amount = 20
 switch_extruder_retraction_speeds = 35
-travel_avoid_distance = 3
 wall_0_inset = 0
 wall_line_width_x = =line_width
 wall_thickness = =line_width * 3

resources/quality/ultimaker3/um3_aa0.4_PP_Fast_Print.inst.cfg

@@ -43,7 +43,6 @@ retraction_count_max = 12
 retraction_extra_prime_amount = 0.8
 retraction_extrusion_window = 1
 retraction_hop = 2
-retraction_hop_enabled = True
 retraction_hop_only_when_collides = True
 retraction_min_travel = 0.8
 retraction_prime_speed = 18
@@ -60,7 +59,6 @@ switch_extruder_prime_speed = 15
 switch_extruder_retraction_amount = 20
 switch_extruder_retraction_speeds = 35
 top_bottom_thickness = 1.1
-travel_avoid_distance = 3
 wall_0_inset = 0
 wall_line_width_x = =line_width
 wall_thickness = =line_width * 3

resources/quality/ultimaker3/um3_aa0.4_PP_Normal_Quality.inst.cfg

@@ -42,7 +42,6 @@ retraction_count_max = 12
 retraction_extra_prime_amount = 0.8
 retraction_extrusion_window = 1
 retraction_hop = 2
-retraction_hop_enabled = True
 retraction_hop_only_when_collides = True
 retraction_min_travel = 0.8
 retraction_prime_speed = 18
@@ -59,7 +58,6 @@ switch_extruder_prime_speed = 15
 switch_extruder_retraction_amount = 20
 switch_extruder_retraction_speeds = 35
 top_bottom_thickness = 1
-travel_avoid_distance = 3
 wall_0_inset = 0
 wall_line_width_x = =line_width
 wall_thickness = =line_width * 3