Added license comment to VEmbeddedPaintable

src/com/vaadin/terminal/gwt/client/ui/VPasswordFieldPaintable.java

@@ -1,3 +1,7 @@
+/*
+@VaadinApache2LicenseForJavaFiles@
+ */
+
 package com.vaadin.terminal.gwt.client.ui;
 
 import com.google.gwt.core.client.GWT;