[FEATURE] use status-codes given by annotation

To provide better Response-Handling, the status-code that will be used
to build the response of the ReST-Service can now optionally be
specified by using the status-attribute of the corresponding annotation.

Example:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@PUT(
  status = 201, // http created
  query = "CREATE (this:Test {id: {id}}) RETURN this"
)
@Resource("data/test/{id}")
public interface TestResource {
    ...
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~