Initial support for converting the mappings to a Pact(flow) json file (#748)

* WithDescription

* WithConsumer / WithProvider

* x

* .

* .

* .

* .

* fix

* pact

* nullable

* ficx

* .

* fix

src/WireMock.Net.Abstractions/Matchers/Request/IRequestMatcher.cs

@@ -0,0 +1,20 @@
+using JetBrains.Annotations;
+
+namespace WireMock.Matchers.Request
+{
+    /// <summary>
+    /// The RequestMatcher interface.
+    /// </summary>
+    public interface IRequestMatcher
+    {
+        /// <summary>
+        /// Determines whether the specified RequestMessage is match.
+        /// </summary>
+        /// <param name="requestMessage">The RequestMessage.</param>
+        /// <param name="requestMatchResult">The RequestMatchResult.</param>
+        /// <returns>
+        /// A value between 0.0 - 1.0 of the similarity.
+        /// </returns>
+        double GetMatchingScore([NotNull] IRequestMessage requestMessage, [NotNull] IRequestMatchResult requestMatchResult);
+    }
+}