Adapt usages in SWT to new GC#drawImage API

    The previous drawImage method required specifying the full source and destination rectangles, which meant the caller needed to know the image size up front.
    This change replaces the old API call in CLabel with the newer, simplified drawImage overload that takes fewer parameters and no longer requires the caller to provide the image dimensions.

Author: arunjose696

bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CLabel.java

@@ -574,8 +574,7 @@ void onPaint(PaintEvent event) {
 
 	// draw the image
 	if (img != null) {
-		gc.drawImage(img, 0, 0, imageRect.width, imageHeight,
-						x, imageY, imageRect.width, imageHeight);
+		gc.drawImage(img, x, imageY, imageRect.width, imageHeight);
 		x +=  imageRect.width + GAP;
 		extent.x -= imageRect.width + GAP;
 	}