Updating orders client variable name

Change-Id: Ife5c89f838ae849ec938b64635dfaf4e4c9e1adf
Updated variable names and parameters

Change-Id: Ib836047eea1f766c0c6cafa12f66ef4fa29d562c
Adding paging and get tests

Change-Id: Ie429891248849d4cef090f88c549c65310acd0a6