Write logging in case a Matcher throws an exception (#986)

* ThrowException

* ...

* .

* ...

* b

* fix test

* ...

* .

* sonar

* ft

* .

* fix tst

src/WireMock.Net/Extensions/ExceptionExtensions.cs

@@ -0,0 +1,16 @@
+using System;
+
+namespace WireMock.Extensions;
+
+internal static class ExceptionExtensions
+{
+    public static Exception? ToException(this Exception[] exceptions)
+    {
+        return exceptions.Length switch
+        {
+            1 => exceptions[0],
+            > 1 => new AggregateException(exceptions),
+            _ => null
+        };
+    }
+}