Add name for EventId in logs

[Kahbazi]

Can we have log event name for logs in all the projects? Lately it has been added for MVC (aspnet/Mvc#6818)

I can submit a PR if it's ok.

Here's a list of projects so we can see which one already has the event name and which one doesn't.

• Microsoft.AspNetCore.DataProtection
• Microsoft.AspNetCore.Hosting
• Microsoft.AspNetCore.Identity
• Microsoft.AspNetCore.Server.HttpSys
• Microsoft.Extensions.Identity.Core
• Microsoft.AspNetCore.Server.Kestrel.Core
• Microsoft.AspNetCore.HostFiltering
• Microsoft.AspNetCore.Antiforgery
• Microsoft.AspNetCore.Routing
• Microsoft.AspNetCore.Cors
• Microsoft.AspNetCore.Diagnostics
• Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore
• Microsoft.AspNetCore.Localization
• Microsoft.AspNetCore.HttpsPolicy
• Microsoft.AspNetCore.ResponseCaching
• Microsoft.AspNetCore.ResponseCompression
• Microsoft.AspNetCore.Rewrite
• Microsoft.AspNetCore.Session
• Microsoft.AspNetCore.StaticFiles
• Microsoft.AspNetCore.Mvc.Core
• Microsoft.AspNetCore.Mvc.Formatters.Json
• Microsoft.AspNetCore.Authentication
• Microsoft.AspNetCore.Authentication.Cookies
• Microsoft.AspNetCore.Authentication.JwtBearer
• Microsoft.AspNetCore.Authentication.OpenIdConnect
• Microsoft.AspNetCore.Authentication.Twitter
• Microsoft.AspNetCore.Authentication.WsFederation
• Microsoft.AspNetCore.Authorization
• Microsoft.AspNetCore.CookiePolicy
• Microsoft.AspNetCore.Http.Connections
• Microsoft.AspNetCore.Http.Connections.Client
• Microsoft.AspNetCore.SignalR.Client.Core
• Microsoft.AspNetCore.SignalR.Core
• Microsoft.AspNetCore.SignalR.StackExchangeRedis

[blowdart]

Speaking for the Authentication, Authorization and DataProtection pieces I'd be happy to look at a PR for those

[JamesNK]

I'll do Microsoft.AspNetCore.Routing & StaticFiles

[Kahbazi]

I'll take projects in Middleware.sln

[Kahbazi]

There's no LoggingExtensions class in Microsoft.AspNetCore.Identity and Microsoft.Extensions.Identity.Core. Should I add one while adding event names?

https://github.com/aspnet/AspNetCore/blob/master/src/Identity/Extensions.Core/src/UserManager.cs#L711