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
ArrayList solid = null;
		ArrayList dashed = null;
		ArrayList dotted = null;
		for ( int i = 0; i < borders.length; i++ )
		{
			if ( IStyle.DOUBLE_VALUE.equals( borders[i].borderStyle ) )
			{
				if ( null == dbl )
				{
					dbl = new ArrayList( );
				}
				dbl.add( borders[i] );
			}
			else if ( IStyle.DASHED_VALUE.equals( borders[i].borderStyle ) )
			{
				if ( null == dashed )
				{
					dashed = new ArrayList( );
				}
				dashed.add( borders[i] );
			}
			else if ( IStyle.DOTTED_VALUE.equals( borders[i].borderStyle ) )
			{
				if ( null == dotted )
				{
					dotted = new ArrayList( );
				}
				dotted.add( borders[i] );
			}