Add font-awesome dependency

Author: javier-godoy

pom.xml

@@ -123,6 +123,12 @@
             <groupId>com.vaadin</groupId>
             <artifactId>vaadin-testbench</artifactId>
             <scope>test</scope>
+        </dependency>
+		<dependency>
+            <groupId>org.webjars</groupId>
+            <artifactId>font-awesome</artifactId>
+            <version>4.7.0</version>
+			<scope>test</scope>
         </dependency>
 		<dependency>
             <groupId>com.fasterxml.jackson.core</groupId>