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
pptOutput.write( ( "</v:shape>\n" ).getBytes( ) ); 
			pptOutput.write( ( "<div v:shape=3D't" + shapeCount + "'>\n" ).getBytes( ) ); 
			pptOutput.write( ( "<div style=3D'mso-text-indent-alt:" 
					+ 0
					+ ";text-align:left;'>" 
					+ "<span style=3D'font-family:" 
					+ fontFamilies.getCssText( )
					+ ";font-size:" 
					+ fi.getFontSize( )
					* scale
					+ "pt;color:#" 
					+ red
					+ green
					+ blue + ";'>" ).getBytes( ) ); 
			
			if ( fontInfo != null && fontInfo.getFontStyle( ) == Font.ITALIC )
			{
				pptOutput.write( ( "<i>" ).getBytes( ) );
				pptOutput.write( encodedText.array( ) );
				pptOutput.write( ( "</i>" ).getBytes( ) );
			}
			else
			{
				pptOutput.write( encodedText.array( ) );
			}
			pptOutput.write( ( "</span></div>\n" ).getBytes( ) );
			pptOutput.write( ( "</div>\n" ).getBytes( ) ); 
		}
		catch ( IOException ioe )
		{