Feature: Unit tests of each dotnet project should be placed on a dedicated folder

[hocinehacherouf]

Is your feature request related to a problem? Please describe.

Currently, it is difficult

• To distinguish unit tests coded in the project AzureIoTHub.Portal.Server.Tests.Unit
• To identify with which project they are linked/testing

Describe the solution you'd like

Unit tests of each dotnet project should be placed on a dedicated folder.

Example of the layout of the unit test project:

.
└── AzureIoTHub.Portal.Server.Tests.Unit/
    ├── Client/
    │   ├── Components/
    │   │   └── ...
    │   ├── Pages/
    │   │   └── ...
    │   ├── Services/
    │   │   └── ...
    │   └── Shared/
    │       └── ...
    ├── Server/
    │   ├── Controllers/
    │   │   └── ...
    │   ├── Services/
    │   │   └── ...
    │   └── ...
    └── Shared/
        ├── Constants/
        │   └── ...
        ├── Models/
        │   └── ...
        └── ...