vectorgraphics org.freehep 2.1.1 4.0.0 org.freehep freehep-graphicsio FreeHEP GraphicsIO FreeHEP GraphicsIO Base Library freehep-maven Maven FreeHEP http://java.freehep.org/maven2 org.codehaus.mojo exec-maven-plugin 1.0.2 java org.freehep.graphicsio.exportchooser.ImageIOExportFileType org.freehep freehep-graphics2d 2.1.1 org.freehep freehep-export org.freehep freehep-io