ElectronNET.API: Move API code to subfolder

src/ElectronNET.API/API/Entities/OpenExternalOptions.cs

@@ -0,0 +1,22 @@
+using System;
+using System.ComponentModel;
+
+namespace ElectronNET.API.Entities
+{
+    /// <summary>
+    /// Controls the behavior of OpenExternal.
+    /// </summary>
+    public class OpenExternalOptions
+    {
+        /// <summary>
+        /// <see langword="true"/> to bring the opened application to the foreground. The default is <see langword="true"/>.
+        /// </summary>
+        [DefaultValue(true)]
+        public bool Activate { get; set; } = true;
+
+        /// <summary>
+        /// The working directory.
+        /// </summary>
+        public string WorkingDirectory { get; set; }
+    }
+}