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
BorderInfo[] borders = new BorderInfo[4];
				borders[BorderInfo.TOP_BORDER] = new BorderInfo( layoutX,
						layoutY + borderTopWidth / 2,
						layoutX + container.getWidth( ),
						layoutY + borderTopWidth / 2,
						borderTopWidth,
						borderTopColor,
						style.getProperty( StyleConstants.STYLE_BORDER_TOP_STYLE ),
						BorderInfo.TOP_BORDER );
				borders[BorderInfo.RIGHT_BORDER] = new BorderInfo( layoutX
						+ container.getWidth( )
						- borderRightWidth
						/ 2,
						layoutY,
						layoutX + container.getWidth( ) - borderRightWidth / 2,
						layoutY + container.getHeight( ),
						borderRightWidth,
						borderRightColor,
						style.getProperty( StyleConstants.STYLE_BORDER_RIGHT_STYLE ),
						BorderInfo.RIGHT_BORDER );
				borders[BorderInfo.BOTTOM_BORDER] = new BorderInfo( layoutX,
						layoutY
								+ container.getHeight( )
								- borderBottomWidth
								/ 2,
						layoutX + container.getWidth( ),
						layoutY
								+ container.getHeight( )
								- borderBottomWidth
								/ 2,