Bug 133776 Oda DesignerState support on OdaDataSource
OdaDataSet supported Oda DesignerState. This feature is also need in OdaDataSource. Please add OdaDesignerState property to OdaDataSource element in ROM. Make the related changes.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/OdaDataSetHandle.java
* 
	 * @return the content of designer state as the string.
	 */
	public String getDesigerStateContentAsString( )
	{
		Object value = getProperty( DESIGNER_STATE_PROP );
		if ( value == null )
			return null;
		assert value instanceof OdaDesignerState;
		return ( (OdaDesignerState) value ).getContentAsString( );
	}
	/**
	 * Returns the content of designer state as the string.
	 * 
	 * @param content
	 *            the content of designer state as the string.
	 * 
	 * @throws SemanticException
	 *             if designer state property is locked.
	 */
	public void setDesigerStateContentAsString( String content )
			throws SemanticException
	{
		setDesignerStateMemberValue( OdaDesignerState.CONTENT_AS_STRING_MEMBER,
				content );
	}
	/**
	 * Returns the content of designer state as the byte array.
	 * 
	 * @return the content of designer state as the byte array.