move 'WireMock.Net.OpenApiParser.Preview' to ''src-preview' folder

src-preview/WireMock.Net.OpenApiParser.Preview/Utils/PathUtils.cs

@@ -0,0 +1,27 @@
+// Copyright © WireMock.Net
+
+namespace WireMock.Net.OpenApiParser.Utils;
+
+internal static class PathUtils
+{
+    internal static string Combine(params string[] paths)
+    {
+        if (paths.Length == 0)
+        {
+            return string.Empty;
+        }
+
+        var result = paths[0].Trim().TrimEnd('/');
+
+        for (int i = 1; i < paths.Length; i++)
+        {
+            var nextPath = paths[i].Trim().TrimStart('/').TrimEnd('/');
+            if (!string.IsNullOrEmpty(nextPath))
+            {
+                result += '/' + nextPath;
+            }
+        }
+
+        return result;
+    }
+}