Add DateField(LocalDate value) constructor (#12096)

server/src/main/java/com/vaadin/ui/DateField.java

@@ -49,6 +49,17 @@ public class DateField extends AbstractLocalDateField {
         super(caption, value);
     }
 
+    /**
+     * Constructs a new <code>DateField</code> with initial date value.
+     *
+     * @param value
+     *            the LocalDate value.
+     */
+    public DateField(LocalDate value) {
+        super();
+        setValue(value);
+    }
+
     /**
      * Constructs an empty <code>DateField</code> with caption.
      *