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
{
		
		private int x;
		
		private int y;
		/**
		 * Creates a container position of report.
		 */
		public ContainerPosition( int x, int y )
		{
			this.x = x;
			this.y = y;
		}
	}
	/**
	 * The class defines border info of report.
	 */
	private class BorderInfo