Let CPE always use prime tower

Also 0.8mm.

resources/quality/ultimaker3/um3_aa0.8_CPE_Draft_Print.inst.cfg

@@ -14,6 +14,7 @@ brim_width = 15
 line_width = =machine_nozzle_size * 0.875
 material_print_temperature = =default_material_print_temperature + 15
 material_standby_temperature = 100
+prime_tower_enable = True
 speed_print = 40
 speed_topbottom = =math.ceil(speed_print * 25 / 40)
 speed_wall = =math.ceil(speed_print * 30 / 40)

resources/quality/ultimaker3/um3_aa0.8_CPE_Superdraft_Print.inst.cfg

@@ -15,6 +15,7 @@ layer_height = 0.4
 line_width = =machine_nozzle_size * 0.875
 material_print_temperature = =default_material_print_temperature + 20
 material_standby_temperature = 100
+prime_tower_enable = True
 speed_print = 45
 speed_topbottom = =math.ceil(speed_print * 30 / 45)
 speed_wall = =math.ceil(speed_print * 40 / 45)

resources/quality/ultimaker3/um3_aa0.8_CPE_Verydraft_Print.inst.cfg

@@ -15,6 +15,7 @@ layer_height = 0.3
 line_width = =machine_nozzle_size * 0.875
 material_print_temperature = =default_material_print_temperature + 17
 material_standby_temperature = 100
+prime_tower_enable = True
 speed_print = 40
 speed_topbottom = =math.ceil(speed_print * 25 / 40)
 speed_wall = =math.ceil(speed_print * 30 / 40)