ElectronNET.API: Move API code to subfolder

src/ElectronNET.API/API/Entities/Size.cs

@@ -0,0 +1,33 @@
+namespace ElectronNET.API.Entities
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public class Size
+    {
+        /// <summary>
+        /// Gets or sets the width.
+        /// </summary>
+        /// <value>
+        /// The width.
+        /// </value>
+        public int Width { get; set; }
+
+        /// <summary>
+        /// Gets or sets the height.
+        /// </summary>
+        /// <value>
+        /// The height.
+        /// </value>
+        public int Height { get; set; }
+
+        /// <summary>
+        /// Convert this <see cref="Size"/> to <see cref="System.Drawing.Size"/>.
+        /// </summary>
+        /// <param name="size">The size.</param>
+        public static implicit operator System.Drawing.Size(Size size)
+        {
+            return new System.Drawing.Size(size.Width, size.Height);
+        }
+    }
+}