Issue getting query parameters from resourceType

[juanchib]

Given this raml

#%RAML 1.0
title: test-date-spec
version: v1
baseUri: http://localhost:8081

resourceTypes:
  read:
    get:
    
traits:
  searchable:
    usage: Apply this trait to resources which supports datetime range searching
    queryParameters:
      dateFrom:
        type: date-only
        example: "2017-10-02"
        required: false
      dateTo:
        type: date-only
        example: "2018-10-02"
        required: false

/testuri:
  is: [searchable]
  type: read

Is not possible to get the query parameters from the method, I've added a PR with a test #683

[jpbelang]

Looking into this tonight.