Add PowerControl

Add NeptuneController support (kind of works)

Add Neptune controller directly from hidapi (to reduce rate of requests)

Add README

PowerControl/Program.cs

@@ -0,0 +1,23 @@
+using PowerControl;
+
+namespace PowerControl
+{
+    internal static class Program
+    {
+        /// <summary>
+        ///  The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            // To customize application configuration such as set high DPI settings or default font,
+            // see https://aka.ms/applicationconfiguration.
+            ApplicationConfiguration.Initialize();
+
+            using (var controller = new Controller())
+            {
+                Application.Run();
+            }
+        }
+    }
+}