Merge pull request #708 from syjer/692-allow-shape-rendering

fixes #692 allow shape-rendering

Author: danfickle

openhtmltopdf-core/src/main/java/com/openhtmltopdf/css/constants/SVGProperty.java

@@ -35,7 +35,8 @@ public enum SVGProperty {
     STROKE_LINEJOIN,
     STROKE_MITERLIMIT,
     STROKE_OPACITY,
-    STROKE_WIDTH;
+    STROKE_WIDTH,
+    SHAPE_RENDERING;
 
     private static final Set<String> _set =
             Arrays.stream(values())