Refactor Transformer (add Scriban) (#562)

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

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using WireMock.Types;
 
 namespace WireMock.Admin.Mappings
 {
@@ -53,10 +54,15 @@ namespace WireMock.Admin.Mappings
         public EncodingModel BodyEncoding { get; set; }
 
         /// <summary>
-        /// Use Handlebars transformer.
+        /// Use ResponseMessage Transformer.
         /// </summary>
         public bool? UseTransformer { get; set; }
 
+        /// <summary>
+        /// Gets the type of the transformer.
+        /// </summary>
+        public string TransformerType { get; set; }
+
         /// <summary>
         /// Use the Handlerbars transformer for the content from the referenced BodyAsFile.
         /// </summary>

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

@@ -0,0 +1,23 @@
+namespace WireMock.Types
+{
+    /// <summary>
+    /// The ResponseMessage Transformers
+    /// </summary>
+    public enum TransformerType
+    {
+        /// <summary>
+        /// https://github.com/Handlebars-Net/Handlebars.Net
+        /// </summary>
+        Handlebars,
+
+        /// <summary>
+        /// https://github.com/scriban/scriban : default
+        /// </summary>
+        Scriban,
+
+        /// <summary>
+        /// https://github.com/scriban/scriban : DotLiquid
+        /// </summary>
+        ScribanDotLiquid
+    }
+}