ENH:remove restrictions on mixed use of high and low temp filaments

jira: STUDIO-10482
Change-Id: Ifdf6f11b45f2e6d138ea615a3ad1f23d40ad3fe9
(cherry picked from commit 0178e930809cabcdbc09ab305e70e4323598b343)
(cherry picked from commit 8f92391717e37dd0f51aa067ad626b83630a46b1)

src/libslic3r/AppConfig.cpp

@@ -305,6 +305,10 @@ void AppConfig::set_defaults()
         set_bool("remember_printer_config", true);
     }
 
+    if (get("enable_high_low_temp_mixed_printing").empty()){
+        set_bool("enable_high_low_temp_mixed_printing", false);
+    }
+
     if (get("auto_calculate_when_filament_change").empty()){
         set_bool("auto_calculate_when_filament_change", true);
     }

src/libslic3r/Print.cpp

@@ -1058,6 +1058,9 @@ int Print::get_compatible_filament_type(const std::set<int>& filament_types)
 //BBS: this function is used to check whether multi filament can be printed
 StringObjectException Print::check_multi_filament_valid(const Print& print)
 {
+    if (!print.need_check_multi_filaments_compatibility())
+        return {std::string()};
+
     auto print_config = print.config();
     std::vector<unsigned int> extruders = print.extruders();
     std::vector<std::string> filament_types;

src/libslic3r/Print.hpp

@@ -1059,6 +1059,9 @@ public:
     BoundingBoxf        get_wipe_tower_bbx() const { return m_wipe_tower_data.bbx; }
     Vec2f               get_rib_offset() const { return m_wipe_tower_data.rib_offset; }
 
+    void set_check_multi_filaments_compatibility(bool check) { m_need_check_multi_filaments_compatibility = check; }
+    bool need_check_multi_filaments_compatibility() const { return m_need_check_multi_filaments_compatibility; }
+
     // scaled point
     Vec2d translate_to_print_space(const Point &point) const;
     static FilamentTempType get_filament_temp_type(const std::string& filament_type);
@@ -1151,6 +1154,8 @@ private:
     //SoftFever: calibration
     Calib_Params m_calib_params;
 
+    bool m_need_check_multi_filaments_compatibility{true};
+
     // To allow GCode to set the Print's GCodeExport step status.
     friend class GCode;
     // Allow PrintObject to access m_mutex and m_cancel_callback.