Add support for Cors (#714)

src/WireMock.Net.Abstractions/Types/CorsPolicyOptions.cs

@@ -0,0 +1,36 @@
+using System;
+
+namespace WireMock.Types
+{
+    /// <summary>
+    /// Policies to use when using CORS.
+    /// </summary>
+    [Flags]
+    public enum CorsPolicyOptions
+    {
+        /// <summary>
+        /// Cors is disabled
+        /// </summary>
+        None = 0,
+
+        /// <summary>
+        /// Ensures that the policy allows any header.
+        /// </summary>
+        AllowAnyHeader = 0b00000001,
+
+        /// <summary>
+        /// Ensures that the policy allows any method.
+        /// </summary>
+        AllowAnyMethod = 0b00000010,
+
+        /// <summary>
+        /// Ensures that the policy allows any origin.
+        /// </summary>
+        AllowAnyOrigin = 0b00000100,
+
+        /// <summary>
+        /// Ensures that the policy allows any header, method and origin.
+        /// </summary>
+        AllowAll = AllowAnyHeader | AllowAnyMethod | AllowAnyOrigin
+    }
+}