Bug 187213 Provid a writer to serialize design in document without any white space.
Add a new writer for serialize design in document without any withe space.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/XMLWriter.java
protected PrintStream out = null;
	/**
	 * The stack of open tags.
	 */
	protected Stack elementStack = new Stack( );
	/**
	 * Flag to indicate if a tag is currently "active": the &ltTag portion has
	 * been written, but not the closing &gt.
	 */
	private boolean elementActive = false;
	/**
	 * Counts the number of attribute seen so far for a tag. Used to control the
	 * number of attributes that appear on one print line.
	 */
	private int attrCount = 0;
	/**
	 * Stack of conditional attributes to be started only if they contain
	 * something.
	 */
	protected Stack pendingElementStack = new Stack( );
	/**
	 * Protected constructor
	 * 
	 */
	protected XMLWriter( )
	{
	}
	/**
	 * Constructor.
	 *