Mark package export from SVG fragment as internal

This mark the package export for org.eclipse.swt.svg from the SVG
fragment as internal because it's only required by tests.

Author: HeikoKlare

bundles/org.eclipse.swt.svg/META-INF/MANIFEST.MF

@@ -11,5 +11,5 @@ Fragment-Host: org.eclipse.swt
 Import-Package: com.github.weisj.jsvg;version="[2.0.0,3.0.0)",
  com.github.weisj.jsvg.parser;version="[2.0.0,3.0.0)",
  com.github.weisj.jsvg.view;version="[2.0.0,3.0.0)"
-Export-Package: org.eclipse.swt.svg
+Export-Package: org.eclipse.swt.svg;x-internal:=true
 Provide-Capability: eclipse.swt;image.format="svg";version:Version="1.0"

tests/org.eclipse.swt.tests/JUnit Tests/org/eclipse/swt/tests/junit/JSVGRasterizerTest.java

@@ -26,6 +26,7 @@
 import org.eclipse.swt.svg.JSVGRasterizer;
 import org.junit.jupiter.api.Test;
 
+@SuppressWarnings("restriction")
 class JSVGRasterizerTest {
 
 	private final JSVGRasterizer rasterizer = new JSVGRasterizer();