Fixes up all logging. Configures serilog logging to replace MS logging just like serilog does, adds new ILoggerConfiguration so we aren't hard coding things, dynamically adds enrichers when the container is ready to resolve services.

src/Umbraco.Web.Common/Middleware/UmbracoRequestLoggingMiddleware.cs

@@ -0,0 +1,36 @@
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Serilog.Context;
+using Umbraco.Core.Cache;
+using Umbraco.Core.Logging.Serilog.Enrichers;
+using Umbraco.Net;
+
+namespace Umbraco.Web.Common.Middleware
+{
+    public class UmbracoRequestLoggingMiddleware
+    {
+        readonly RequestDelegate _next;
+        private readonly ISessionIdResolver _sessionIdResolver;
+        private readonly IRequestCache _requestCache;
+
+        public UmbracoRequestLoggingMiddleware(RequestDelegate next, ISessionIdResolver sessionIdResolver, IRequestCache requestCache)
+        {
+            _next = next;
+            _sessionIdResolver = sessionIdResolver;
+            _requestCache = requestCache;
+        }
+
+        public async Task Invoke(HttpContext httpContext)
+        {
+            // TODO: Need to decide if we want this stuff still, there's new request logging in serilog:
+            // https://github.com/serilog/serilog-aspnetcore#request-logging which i think would suffice and replace all of this?
+
+            using (LogContext.Push(new HttpSessionIdEnricher(_sessionIdResolver)))
+            using (LogContext.Push(new HttpRequestNumberEnricher(_requestCache)))
+            using (LogContext.Push(new HttpRequestIdEnricher(_requestCache)))
+            {
+                await _next(httpContext);
+            }
+        }
+    }
+}