OpenID Connect support (#3975)

Co-authored-by: DieselTech <30128380+DieselTech@users.noreply.github.com>
Co-authored-by: majora2007 <josephmajora@gmail.com>

API/Extensions/EnumExtensions.cs

@@ -0,0 +1,43 @@
+#nullable enable
+using System;
+using System.ComponentModel;
+using System.Reflection;
+
+namespace API.Extensions;
+
+public static class EnumExtensions
+{
+    /// <summary>
+    /// Extension on Enum.TryParse which also tried matching on the description attribute
+    /// </summary>
+    /// <returns>if a match was found</returns>
+    /// <remarks>First tries Enum.TryParse then fall back to the more expensive operation</remarks>
+    public static bool TryParse<TEnum>(string? value, out TEnum result) where TEnum : struct, Enum
+    {
+        result = default;
+
+        if (string.IsNullOrEmpty(value))
+        {
+            return false;
+        }
+
+        if (Enum.TryParse(value, out result))
+        {
+            return true;
+        }
+
+        foreach (var field in typeof(TEnum).GetFields(BindingFlags.Public | BindingFlags.Static))
+        {
+            var description = field.GetCustomAttribute<DescriptionAttribute>()?.Description;
+
+            if (!string.IsNullOrEmpty(description) &&
+                string.Equals(description, value, StringComparison.OrdinalIgnoreCase))
+            {
+                result = (TEnum)field.GetValue(null)!;
+                return true;
+            }
+        }
+
+        return false;
+    }
+}