Create WireMock.Net.MimePart project (#1300)

* Create WireMock.Net.MimePart project

* .

* REFACTOR

* ILRepack

* --

* ...

* x

* x

* .

* fix

* public class MimePartMatcher

* shared

* min

* .

* <!--<DelaySign>true</DelaySign>-->

* Update README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

src/WireMock.Net.Minimal/ResponseBuilders/Response.WithProxy.cs

@@ -0,0 +1,59 @@
+// Copyright © WireMock.Net
+
+using System.Net.Http;
+using WireMock.Http;
+using WireMock.Settings;
+using Stef.Validation;
+using System.Security.Cryptography.X509Certificates;
+
+namespace WireMock.ResponseBuilders;
+
+public partial class Response
+{
+    private HttpClient? _httpClientForProxy;
+
+    /// <summary>
+    /// The WebProxy settings.
+    /// </summary>
+    public ProxyAndRecordSettings? ProxyAndRecordSettings { get; private set; }
+
+    /// <inheritdoc />
+    public IResponseBuilder WithProxy(string proxyUrl, string? clientX509Certificate2ThumbprintOrSubjectName = null)
+    {
+        Guard.NotNullOrEmpty(proxyUrl);
+
+        var settings = new ProxyAndRecordSettings
+        {
+            Url = proxyUrl,
+            ClientX509Certificate2ThumbprintOrSubjectName = clientX509Certificate2ThumbprintOrSubjectName
+        };
+
+        return WithProxy(settings);
+    }
+
+    /// <inheritdoc />
+    public IResponseBuilder WithProxy(ProxyAndRecordSettings settings)
+    {
+        Guard.NotNull(settings);
+
+        ProxyAndRecordSettings = settings;
+
+        _httpClientForProxy = HttpClientBuilder.Build(settings);
+        return this;
+    }
+
+    /// <inheritdoc />
+    public IResponseBuilder WithProxy(string proxyUrl, X509Certificate2 certificate)
+    {
+        Guard.NotNullOrEmpty(proxyUrl);
+        Guard.NotNull(certificate);
+
+        var settings = new ProxyAndRecordSettings
+        {
+            Url = proxyUrl,
+            Certificate = certificate
+        };
+
+        return WithProxy(settings);
+    }
+}