Use ILRepack to include Microsoft.OpenApi as internal (#1290)

* .

* Use ILRepack to include Microsoft.OpenApi as internal

* ...

* OpenApiSpecificationVersion

* .

* 080

* 4

src-old/WireMock.Net.OpenApiParser/Extensions/OpenApiSchemaExtensions.cs

@@ -0,0 +1,92 @@
+// Copyright © WireMock.Net
+
+using System.Linq;
+using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Interfaces;
+using Microsoft.OpenApi.Models;
+using WireMock.Net.OpenApiParser.Types;
+
+namespace WireMock.Net.OpenApiParser.Extensions;
+
+internal static class OpenApiSchemaExtensions
+{
+    /// <summary>
+    /// https://stackoverflow.com/questions/48111459/how-to-define-a-property-that-can-be-string-or-null-in-openapi-swagger
+    /// </summary>
+    public static bool TryGetXNullable(this OpenApiSchema schema, out bool value)
+    {
+        value = false;
+
+        if (schema.Extensions.TryGetValue("x-nullable", out var e) && e is OpenApiBoolean openApiBoolean)
+        {
+            value = openApiBoolean.Value;
+            return true;
+        }
+
+        return false;
+    }
+
+    public static SchemaType GetSchemaType(this OpenApiSchema? schema)
+    {
+        if (schema == null)
+        {
+            return SchemaType.Unknown;
+        }
+
+        if (schema.Type == null)
+        {
+            if (schema.AllOf.Any() || schema.AnyOf.Any())
+            {
+                return SchemaType.Object;
+            }
+        }
+
+        return schema.Type switch
+        {
+            "object" => SchemaType.Object,
+            "array" => SchemaType.Array,
+            "integer" => SchemaType.Integer,
+            "number" => SchemaType.Number,
+            "boolean" => SchemaType.Boolean,
+            "string" => SchemaType.String,
+            "file" => SchemaType.File,
+            _ => SchemaType.Unknown
+        };
+    }
+
+    public static SchemaFormat GetSchemaFormat(this OpenApiSchema? schema)
+    {
+        switch (schema?.Format)
+        {
+            case "float":
+                return SchemaFormat.Float;
+
+            case "double":
+                return SchemaFormat.Double;
+
+            case "int32":
+                return SchemaFormat.Int32;
+
+            case "int64":
+                return SchemaFormat.Int64;
+
+            case "date":
+                return SchemaFormat.Date;
+
+            case "date-time":
+                return SchemaFormat.DateTime;
+
+            case "password":
+                return SchemaFormat.Password;
+
+            case "byte":
+                return SchemaFormat.Byte;
+
+            case "binary":
+                return SchemaFormat.Binary;
+
+            default:
+                return SchemaFormat.Undefined;
+        }
+    }
+}