[iOS] Fix glyph path and clip path release.

ios/RNSVGNode.m

@@ -283,6 +283,9 @@ CGFloat const RNSVG_DEFAULT_FONT_SIZE = 12;
 {
     if (self.clipPath) {
         _clipNode = (RNSVGClipPath*)[self.svgView getDefinedClipPath:self.clipPath];
+        if (_cachedClipPath) {
+            CGPathRelease(_cachedClipPath);
+        }
         _cachedClipPath = CGPathRetain([_clipNode getPath:context]);
         if (_clipMask) {
             CGImageRelease(_clipMask);

ios/Text/RNSVGTSpan.m

@@ -752,8 +752,10 @@ static CGFloat RNSVGTSpan_radToDeg = 180 / (CGFloat)M_PI;
 
                 //  Glyphs whose midpoint-on-the-path are off the path are not rendered.
                 if (midPoint > endOfRendering) {
+                    CGPathRelease(glyphPath);
                     continue;
                 } else if (midPoint < startOfRendering) {
+                    CGPathRelease(glyphPath);
                     continue;
                 }