Use latest ProtoBufJsonConverter to support WellKnownTypes (#1161)

* Use latest ProtoBufJsonConverter to support WellKnownTypes

* Fix

* 02

* WireMockServer_WithBodyAsProtoBuf_WithWellKnownTypes

* .

* extra test

* 0.4.0-preview-06

* 7

* <PackageReference Include="ProtoBufJsonConverter" Version="0.4.0-preview-08" />

* Update README.md

* <PackageReference Include="ProtoBufJsonConverter" Version="0.4.0-preview-09" />

* <PackageReference Include="ProtoBufJsonConverter" Version="0.4.0" />

* Update README.md

src/WireMock.Net/Util/WireMockProtoFileResolver.cs

@@ -0,0 +1,46 @@
+// Copyright © WireMock.Net
+
+#if PROTOBUF
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using ProtoBufJsonConverter;
+using Stef.Validation;
+
+namespace WireMock.Util;
+
+internal class WireMockProtoFileResolver : IProtoFileResolver
+{
+    private readonly Dictionary<string, string> _files = new();
+
+    public WireMockProtoFileResolver(IReadOnlyCollection<string> protoDefinitions)
+    {
+        if (Guard.NotNullOrEmpty(protoDefinitions).Count() > 1)
+        {
+            foreach (var extraProtoDefinition in protoDefinitions.Skip(1))
+            {
+                var firstNonEmptyLine = extraProtoDefinition.Split(['\r', '\n']).FirstOrDefault(l => !string.IsNullOrEmpty(l));
+                if (firstNonEmptyLine != null)
+                {
+                    _files.Add(firstNonEmptyLine.TrimStart(['\r', '\n', '/', ' ']), extraProtoDefinition);
+                }
+            }
+        }
+    }
+
+    public bool Exists(string path)
+    {
+        return _files.ContainsKey(path);
+    }
+
+    public TextReader OpenText(string path)
+    {
+        if (_files.TryGetValue(path, out var extraProtoDefinition))
+        {
+            return new StringReader(extraProtoDefinition);
+        }
+
+        throw new FileNotFoundException($"The ProtoDefinition '{path}' was not found.");
+    }
+}
+#endif