Changed Manipulation panel. (Simple mode)There is exclamation mark icon next for the object name, if it has errors.

+ some code refactoring

src/slic3r/GUI/GUI_ObjectManipulation.hpp

@@ -78,6 +78,9 @@ class ObjectManipulation : public OG_Settings
     bool            m_uniform_scale {true};
     PrusaLockButton* m_lock_bnt{ nullptr };
 
+    wxBitmap        m_manifold_warning_bmp;
+    wxStaticBitmap* m_fix_throught_netfab_bitmap;
+
 #ifndef __APPLE__
     // Currently focused option name (empty if none)
     std::string     m_focused_option;
@@ -107,6 +110,8 @@ public:
     void emulate_kill_focus();
 #endif // __APPLE__
 
+    void update_manifold_warning_icon_state(const wxString& tooltip);
+
 private:
     void reset_settings_value();