Move test projects from src/ to tests/ (#11357)

* Update gitignore

* Move csproj

* Update project references

* Update solutions

* Update build scripts

* Tests used to share editorconfig with projects in src

* Fix broken tests.

* Stop copying around .editorconfig

merged root one with linting

* csharp_style_expression_bodied -> suggestion

* Move StyleCop rulesets to matching directories and update shared build properties

* Remove legacy build files, update NuGet.cofig and solution files

* Restore myget source

* Clean up .gitignore

* Update .gitignore

* Move new test classes to tests after merge

* Gitignore + nuget config

* Move new test

Co-authored-by: Ronald Barendse <ronald@barend.se>

tests/Umbraco.Tests.Integration/Extensions/ServiceCollectionExtensions.cs

@@ -0,0 +1,28 @@
+// Copyright (c) Umbraco.
+// See LICENSE for more details.
+
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Umbraco.Cms.Tests.Integration.Implementations;
+
+namespace Umbraco.Cms.Tests.Integration.Extensions
+{
+    public static class ServiceCollectionExtensions
+    {
+        /// <summary>
+        /// These services need to be manually added because they do not get added by the generic host
+        /// </summary>
+        public static void AddRequiredNetCoreServices(this IServiceCollection services, TestHelper testHelper, IWebHostEnvironment webHostEnvironment)
+        {
+            services.AddSingleton<IHttpContextAccessor>(x => testHelper.GetHttpContextAccessor());
+
+            // The generic host does add IHostEnvironment but not this one because we are not actually in a web context
+            services.AddSingleton<IWebHostEnvironment>(x => webHostEnvironment);
+
+            // Replace the IHostEnvironment that generic host created too
+            services.AddSingleton<IHostEnvironment>(x => webHostEnvironment);
+        }
+    }
+}