feat: option to limit svg support to svg tiny 1.2 only

app/settings.h

@@ -39,6 +39,7 @@ public:
     bool useLightCheckerboard() const;
     bool loopGallery() const;
     bool autoLongImageMode() const;
+    bool svgTiny12Only() const;
     DoubleClickBehavior doubleClickBehavior() const;
     MouseWheelBehavior mouseWheelBehavior() const;
     WindowSizeBehavior initWindowSizeBehavior() const;
@@ -49,6 +50,7 @@ public:
     void setUseLightCheckerboard(bool light);
     void setLoopGallery(bool on);
     void setAutoLongImageMode(bool on);
+    void setSvgTiny12Only(bool on);
     void setDoubleClickBehavior(DoubleClickBehavior dcb);
     void setMouseWheelBehavior(MouseWheelBehavior mwb);
     void setInitWindowSizeBehavior(WindowSizeBehavior wsb);