Refactor models + add tests

src/main/resources/starter/pom/@dependencies.twig

@@ -8,7 +8,7 @@
     <dependency>
         <groupId>{{ dep.groupId }}</groupId>
         <artifactId>{{ dep.artifactId }}</artifactId>
-        <version>{{ "${" }}{{ dep.versionKey }}{{ ".version}" }}</version>
+        <version>{{ "${" }}{{ dep.version.name }}{{ ".version}" }}</version>
         {% if dep.scope == "Test" %}
             <scope>test</scope>
         {% endif %}