Renamed Jersey archetype resource to match other implementations.

Author: sapessi

archetypes/jersey/src/main/resources/archetype-resources/src/main/java/resource/SimpleResource.java renamed to archetypes/jersey/src/main/resources/archetype-resources/src/main/java/resource/PingResource.java

@@ -13,7 +13,7 @@
 import javax.ws.rs.core.Response;
 
 @Path("/ping")
-public class SimpleResource {
+public class PingResource {
 
     @GET
     @Produces(MediaType.APPLICATION_JSON)