Add artwork (#38)

Author: HarelM

src/main/java/il/org/osm/israelhiking/PlanetSearchProfile.java

@@ -750,6 +750,7 @@ private void setIconColorCategory(PointDocument pointDocument, WithTags feature)
                 pointDocument.poiCategory = "Camping";
                 return;
             case "attraction":
+            case "artwork":
                 pointDocument.poiIconColor = "#ffb800";
                 pointDocument.poiIcon = "icon-star";
                 pointDocument.poiCategory = "Other";