added support condition in url

example:
GET http://localhost:5000/phones
GET http://localhost:5000/phones?limit=2&offset=0
GET http://localhost:5000/phones?sort=price,-name
GET http://localhost:5000/phones?fields=name,price
GET http://localhost:5000/phones/note-ii
GET http://localhost:5000/phones/note-ii/colors
GET http://localhost:5000/phones/note-ii/colors/white