Bug 152834 support HTML description of the template
The template descrition is a fragment of HTML, use that fragment to render the template in HTML.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/internal/content/wrap/ForeignContent.java
public ForeignContent( IForeignContent content )
	{
		super( content );
		foreignContent = content;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.content.impl.AbstractContent#accept(org.eclipse.birt.report.engine.content.IContentVisitor)
	 */
	public Object accept( IContentVisitor visitor, Object value )
	{
		return visitor.visitForeign( this, value );
	}
	public String getRawType( )
	{
		return foreignContent.getRawType( );
	}
	/**
	 * @return Returns the content. Caller knows how to cast this object
	 */
	public Object getRawValue( )
	{
		return foreignContent.getRawValue( );
	}
	/**
	 * @param rawType
	 *            The rawType to set.
	 */
	public void setRawType( String rawType )