Bug 148588 Image Builder enhancement
1.Image selector should not filter *.svg 2.Support svg image type in embedded image.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/ImageManager.java
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import org.apache.batik.transcoder.TranscoderException;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.batik.transcoder.image.JPEGTranscoder;
import org.eclipse.birt.report.designer.core.CorePlugin;
import org.eclipse.birt.report.designer.core.DesignerConstants;
import org.eclipse.birt.report.designer.core.model.SessionHandleAdapter;
import org.eclipse.birt.report.model.api.IResourceLocator;
import org.eclipse.birt.report.model.api.ModuleHandle;
import org.eclipse.birt.report.model.api.elements.structures.EmbeddedImage;
import org.eclipse.birt.report.model.api.util.URIUtil;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.graphics.Image;
/**
 * Manages all image resources.
 */
public class ImageManager