Move CSharpCodeMatcher to a new project (#548)

* matcher

* wip

* fix

* <VersionPrefix>1.4.0</VersionPrefix>

* .

* x

* ?

* netstandard2.1

* {}

* test

* Fix: Assembly with same name is already loaded

* _format file

* AssemblyFile = $"WireMock.CodeHelper.Class{Guid.NewGuid()}"

* AssemblyFile = $"WireMock.CodeHelper.Class{Guid.NewGuid().ToString().Replace("-", "")}"

* GC

* x

* remove load ex

* ret

* readme

* no GC

* GetImplementationTypeByInterface

* ``

* PluginLoader

* type

src/WireMock.Net/Matchers/ICSharpCodeMatcher.cs

@@ -0,0 +1,11 @@
+namespace WireMock.Matchers
+{
+    /// <summary>
+    /// CSharpCode / CS-Script Matcher
+    /// </summary>
+    /// <inheritdoc cref="IObjectMatcher"/>
+    /// <inheritdoc cref="IStringMatcher"/>
+    public interface ICSharpCodeMatcher : IObjectMatcher, IStringMatcher
+    {
+    }
+}