Create WireMock.Net.ProtoBuf project (#1350)

* Create WireMock.Net.ProtoBuf project

* ok

* Update Directory.Build.props

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

---------

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

src/WireMock.Net.Shared/ResponseBuilders/IDelayResponseBuilder.cs

@@ -0,0 +1,33 @@
+// Copyright © WireMock.Net
+
+using System;
+
+namespace WireMock.ResponseBuilders;
+
+/// <summary>
+/// The DelayResponseBuilder interface.
+/// </summary>
+public interface IDelayResponseBuilder : ICallbackResponseBuilder
+{
+    /// <summary>
+    /// The delay defined as a <see cref="TimeSpan"/>.
+    /// </summary>
+    /// <param name="delay">The TimeSpan to delay.</param>
+    /// <returns>The <see cref="IResponseBuilder"/>.</returns>
+    IResponseBuilder WithDelay(TimeSpan delay);
+
+    /// <summary>
+    /// The delay defined as milliseconds.
+    /// </summary>
+    /// <param name="milliseconds">The milliseconds to delay.</param>
+    /// <returns>The <see cref="IResponseBuilder"/>.</returns>
+    IResponseBuilder WithDelay(int milliseconds);
+
+    /// <summary>
+    /// Introduce random delay
+    /// </summary>
+    /// <param name="minimumMilliseconds">Minimum milliseconds to delay</param>
+    /// <param name="maximumMilliseconds">Maximum milliseconds to delay</param>
+    /// <returns>The <see cref="IResponseBuilder"/>.</returns>
+    IResponseBuilder WithRandomDelay(int minimumMilliseconds = 0, int maximumMilliseconds = 60_000);
+}