Added HttpException class for missing HttpException for net8
Wrapped HttpContext.Session, GetJsonResult, IsAjaxRequest and GetUserIdentityName in controllers for net8
Added AuthenticationService to test Fab2ApprovalMKLink code for net8
Compile conditionally flags to debug in dotnet core
When debugging only
app.Services.GetRequiredService<IPCRBService>();
Injected AppSettings instead of using GetEnvironmentVariable at Services level
Get ready to use VSCode IDE
