Add WireMock.Net.AspNetCore.Middleware (#1175)

* Add WireMock.Net.AspNetCore.Middleware

* .

* WireMock.Net.Middleware.Tests

* .

* X-WireMock-Response-Delay

test/WireMock.Net.TestWebApplication/Program.cs

@@ -0,0 +1,49 @@
+using WireMock.Net.AspNetCore.Middleware;
+using WireMock.RequestBuilders;
+using WireMock.ResponseBuilders;
+
+namespace WireMock.Net.TestWebApplication;
+
+// Make the implicit Program class public so test projects can access it.
+public class Program
+{
+    public static async Task Main(string[] args)
+    {
+        var alwaysRedirectToWireMock = args.Contains("--AlwaysRedirectToWireMock=true");
+
+        var builder = WebApplication.CreateBuilder(args);
+
+        builder.Services.AddWireMockService(server =>
+        {
+            server.Given(Request.Create()
+                .WithPath("/test1")
+                .UsingAnyMethod()
+            ).RespondWith(Response.Create()
+                .WithBody("Hello 1 from WireMock.Net !")
+            );
+
+            server.Given(Request.Create()
+                .WithPath("/test2")
+                .UsingAnyMethod()
+            ).RespondWith(Response.Create()
+                .WithBody("Hello 2 from WireMock.Net !")
+            );
+        }, alwaysRedirectToWireMock);
+
+        var app = builder.Build();
+
+        app.MapGet("/real1", async (HttpClient client) =>
+        {
+            var result = await client.GetStringAsync("https://real-api:12345/test1");
+            return result;
+        });
+
+        app.MapGet("/real2", async (IHttpClientFactory factory) =>
+        {
+            using var client = factory.CreateClient();
+            return await client.GetStringAsync("https://real-api:12345/test2");
+        });
+
+        await app.RunAsync();
+    }
+}