Add MatchOperator "Or", "And" and "Average" for patterns (#755)

* wip

* ...

* .

* ...

* ...

* path

* url

* b

* t

* client

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* RequestMessageMethodMatcherTests

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* h

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* fix tests

* .

src/WireMock.Net.Abstractions/Admin/Mappings/RequestModel.cs

@@ -28,6 +28,20 @@ public class RequestModel
     /// </summary>
     public string[]? Methods { get; set; }
 
+    /// <summary>
+    /// Reject on match for Methods.
+    /// </summary>
+    public bool? MethodsRejectOnMatch { get; set; }
+
+    /// <summary>
+    /// The Operator to use when Methods are defined. [Optional]
+    /// - null      = Same as "or".
+    /// - "or"      = Only one method should match.
+    /// - "and"     = All methods should match.
+    /// - "average" = The average value from all methods.
+    /// </summary>
+    public string? MethodsMatchOperator { get; set; }
+
     /// <summary>
     /// Gets or sets the Headers.
     /// </summary>