Support endpoint DSL in YAML/JSON

[lburgazzoli]

Fixes #366

Release Note

The YAML DSL now supports to use an endpoint-dsl alike structure, like:

- route:
    from:
      direct:
        name: "endpoint"
        timeout: "#property:direct.timeout"
    steps:
      - telegram:
          type: "bots"
          authorization-token: "#property:telegram.token"
      - mock:
          name: "telegram"

[davsclaus]

Oh this is really nice. Going to make that even easier.

Whoa the schema is 40000 lines - glad its auto generated ;)

[lburgazzoli]

@davsclaus the main issue about this implementation is that it requires the camel catalog to look up the Json and construct the URI, wonder if we can use something similar to the component customizer where the catalog searches for some "factory" that provides an auto generated code to construct the endpoint URI from a map of properties and if does not find it, it fall-back to the original mechanic.

[davsclaus]

Yeah that is a good idea. I created a ticket
https://issues.apache.org/jira/browse/CAMEL-15567

[davsclaus]

We can actually also use this in the http components where we do some endpoint uri rebulding, that could benefit from this.