Bug 199834 Enable access to IContent object in IReportItemPresentation layer
In IReportItemPresentation layer, the extended item may want to access properties from current IContent object, for example, bookmark, content style. So we need expose the content object in this layer.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/QueryResultSet.java
public Object getValue( String column ) throws BirtException
	{
		return rs.getValue( column );
	}
	public int getEndingGroupLevel( ) throws BirtException
	{
		return rs.getEndingGroupLevel( );
	}
	public int getStartingGroupLevel( ) throws BirtException
	{
		return rs.getStartingGroupLevel( );
	}
	public Boolean getBoolean( String name ) throws BirtException
	{
		return rs.getBoolean( name );
	}
	public Integer getInteger( String name ) throws BirtException
	{
		return rs.getInteger( name );
	}
	public Double getDouble( String name ) throws BirtException
	{
		return rs.getDouble( name );
	}
	public String getString( String name ) throws BirtException
	{
		return rs.getString( name );
	}
	public BigDecimal getBigDecimal( String name ) throws BirtException
	{