Deliverable-3

Change Client::getDepartment() to Client::getDepartments()
Deliverable-3

Add Unit Test for Department
Deliverable-3

Add Unit Test For User Methods
Deliverable-3

Add Unit Test For User Methods
Deliverable-3

Add Test Cases for Get All Project Tasks Filtered By Department Id
Deliverable - 3

Add Unit Test for Project Methods
Deliverable - 3

Miss some edit in UserTest
Deliverable - 2

Add sample file for uploading task attachment
Deliverable - 3

Add AllTests
Convert existing test cases - remain Project Refernce, Bids, and Translated