Remove package export from SVG fragment

This removes the unnecessary package export for org.eclipse.swt.svg from
the SVG fragment. It limits usage to the test bundle in which tests of
the JSVG rasterizer class reference that class.

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-friends:="org.eclipse.swt.tests"
 Provide-Capability: eclipse.swt;image.format="svg";version:Version="1.0"