Move the usage examples to their own profile

Osmorc, the OSGi plugin of Intellij, is unable to extract the right configuration from the pom.xml file. It's a bug on their side. To turn around this, the osgi-examples are moved to their own profile and not built by default.

pom.xml

@@ -23,7 +23,6 @@
     <module>metrics-examples</module>
     <module>mail-examples</module>
     <module>openshift-example</module>
-    <module>osgi-examples</module>
     <module>maven-service-factory-examples</module>
     <module>service-proxy-examples</module>
     <module>spring-examples</module>
@@ -47,5 +46,11 @@
         <module>docker-examples/vertx-docker-java-fatjar</module>
       </modules>
     </profile>
+    <profile>
+      <id>osgi</id>
+      <modules>
+        <module>osgi-examples</module>
+      </modules>
+    </profile>
   </profiles>
 </project>