Bug 194371 Use page emitter framework to implement ppt emitter.
In order to keep consistent with pdf and postscript, ppt need to use page emitter framework.
engine/org.eclipse.birt.report.engine.emitter.ppt/src/org/eclipse/birt/report/engine/emitter/ppt/PPTRender.java
* @param startY
	 *            the start Y coordinate of the line
	 * @param endX
	 *            the end X coordinate of the line
	 * @param endY
	 *            the end Y coordinate of the line
	 * @param width
	 *            the lineWidth
	 * @param color
	 *            the color of the line
	 */
	private void drawRawLine( double startX, double startY, double endX,
			double endY, double width, Color color, String lineStyle )
	{
		
		try
		{
			pptOutput.write( ( "<v:line id=3D\"" + ( ++shapeCount ) + "\"" ).getBytes( ) ); 
			pptOutput.write( ( " style=3D'position:absolute' from=3D\"" + startX + "pt," + startY + "pt\"" ).getBytes( ) ); 
			pptOutput.write( ( " to=3D\"" + endX + "pt," + endY + "pt\"" ).getBytes( ) );
			pptOutput.write( ( " strokecolor=3D\"#" + Integer.toHexString( color.getRGB( ) & 0x00ffffff ) + "\"" ).getBytes( ) ); 
			pptOutput.write( ( " strokeweight=3D\"" + width + "pt\"" ).getBytes( ) ); 
			if ( lineStyle.equalsIgnoreCase( "dashed" ) )
			{
				pptOutput.write( ( "<v:stroke dashstyle=3D\"dash\"/>\n" ).getBytes( ) );
			}
			else if ( lineStyle.equalsIgnoreCase( "dotted" ) )
			{
				pptOutput.write( ( "<v:stroke dashstyle=3D\"1 1\"/>\n" ).getBytes( ) );
			}