Basic wrapper around DDSReader.

Nasty hack to get initial plugin working...
Mark and Reset the imageinput stream when reading the header.  Then read the whole buffer into DDSReader and generate a fixed BufferedImage ignoring the getDestination() BufferedImage.

imageio/imageio-dds/src/test/java/DDSImageTeaderTest.java

@@ -0,0 +1,38 @@
+import com.twelvemonkeys.imageio.plugins.dds.DDSImageReader;
+import com.twelvemonkeys.imageio.plugins.dds.DDSImageReaderSpi;
+import com.twelvemonkeys.imageio.util.ImageReaderAbstractTest;
+
+import javax.imageio.spi.ImageReaderSpi;
+import java.awt.Dimension;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+public class DDSImageTeaderTest extends ImageReaderAbstractTest<DDSImageReader> {
+	@Override
+	protected ImageReaderSpi createProvider() {
+		return new DDSImageReaderSpi();
+	}
+
+	@Override
+	protected List<TestData> getTestData() {
+		return Collections.singletonList(
+				new TestData(getClassLoaderResource("/dds/dxt5.dds"), new Dimension(512, 512))
+		);
+	}
+
+	@Override
+	protected List<String> getFormatNames() {
+		return Arrays.asList("DDS", "dds");
+	}
+
+	@Override
+	protected List<String> getSuffixes() {
+		return Arrays.asList("dds");
+	}
+
+	@Override
+	protected List<String> getMIMETypes() {
+		return Collections.singletonList("image/vnd-ms.dds");
+	}
+}