Bug 196272 Text position is incorrect in postscript and ppt.
Text position need to be ajusted according to baseline position.
engine/org.eclipse.birt.report.engine.emitter.ppt/src/org/eclipse/birt/report/engine/emitter/ppt/PPTWriter.java
pptOutput.write( ( "<v:shape id=3D't" + ( ++shapeCount ) + "' type=3D'#r'\n" ).getBytes( ) ); 
			pptOutput.write( ( " style=3D'position:absolute;left:" + textX + "pt;top:" + textY + "pt;width:" + width + "pt;height:" + height + "pt;v-text-anchor:top;mso-wrap-style:square;'\n" ).getBytes( ) ); 
			pptOutput.write( ( " filled=3D'f' stroked=3D'f'>\n" ).getBytes( ) ); 
			pptOutput.write( ( "<v:textbox style=3D'mso-fit-shape-to-text:f;' inset=3D'0.00pt 0.00pt 0.00pt 0.00pt'/>\n" ).getBytes( ) ); 
			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:" 
					+ fontName
					+ ";font-size:" 
					+ fontInfo.getFontSize( )
					+ "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( ) );