Use camel-component-default.service to build the Route default template

[lordrip]

Please describe the feature that you want to propose

When creating a new route, a template message is used.

The goal for this ticket is to build the template using the camel-component-default.service, so we can have the default values as we do for individual components. Said in another way, instead of having a hardcoded route, it would be better to create the route using said service, so the components always look the same.