Add SWT Chart as a whole.

Author: Mailaender

openchrom/features/net.openchrom.platform.feature/feature.xml

@@ -107,6 +107,7 @@
       <import feature="org.eclipse.rcp"/>
       <import feature="org.eclipse.help"/>
       <import feature="org.eclipse.license"/>
+      <import feature="org.eclipse.swtchart.feature"/>
       <import feature="org.eclipse.equinox.p2.user.ui"/>
    </requires>