ElectronNET.API: Move API code to subfolder

src/ElectronNET.API/API/Entities/NativeImageJsonConverter.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.IO;
+using Newtonsoft.Json;
+
+namespace ElectronNET.API.Entities
+{
+    internal class NativeImageJsonConverter : JsonConverter
+    {
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            if (value is NativeImage nativeImage)
+            {
+                var scaledImages = nativeImage.GetAllScaledImages();
+                serializer.Serialize(writer, scaledImages);
+            }
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            var dict = serializer.Deserialize<Dictionary<float, string>>(reader);
+            var newDictionary = new Dictionary<float, Image>();
+            foreach (var item in dict)
+            {
+                var bytes = Convert.FromBase64String(item.Value);
+                newDictionary.Add(item.Key, Image.FromStream(new MemoryStream(bytes)));
+            }
+            return new NativeImage(newDictionary);
+        }
+
+        public override bool CanConvert(Type objectType) => objectType == typeof(NativeImage);
+    }
+}