How to add Azure Active directory Authentication in an existing ASP.Net core web application (MVC).

How to add Azure Active directory Authentication in an existing ASP.Net core web application (MVC).
Complete sample code can be found at github.
Whole process can be done in following step.
1. App registration.
2. Add required nuget package to existing application.
3. Configure existing application.
4. Add logout.
Sorce code/Sample code used can be found here
github.com/bha...