ScriptInfo: support style attribute in scripts

This won't magically support constants such as NumberWidget.SLIDER,
but you will be able to write their values (e.g., "slider"), which
are generally pretty intuitive.

Author: ctrueden

src/main/java/org/scijava/script/ScriptInfo.java

@@ -454,6 +454,9 @@ else if ("stepSize".equalsIgnoreCase(key)) {
 			// FIXME
 			item.setStepSize(conversionService.convert(value, Number.class));
 		}
+		else if ("style".equalsIgnoreCase(key)) {
+			item.setWidgetStyle(value);
+		}
 		else if ("visibility".equalsIgnoreCase(key)) {
 			item.setVisibility(conversionService.convert(value, ItemVisibility.class));
 		}