Add table items comparison to enable save button

Signed-off-by: SirWayne <dennis.melzer@bosch-si.com>

hawkbit-ui/pom.xml

@@ -200,6 +200,10 @@
          <groupId>org.springframework.security</groupId>
          <artifactId>spring-security-web</artifactId>
       </dependency>
+      <dependency>
+         <groupId>org.apache.commons</groupId>
+         <artifactId>commons-collections4</artifactId>
+      </dependency>
 
       <dependency>
          <groupId>com.vaadin</groupId>