add some buttons to control LG TV (volume/mute)

add preliminary remote control form

ColorControl/RemoteControlForm.cs

@@ -0,0 +1,66 @@
+using NWin32;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace ColorControl
+{
+    partial class RemoteControlForm : Form
+    {
+        private LgService _lgService;
+        private List<LgPreset> _buttons;
+
+        public RemoteControlForm(LgService lgService, List<LgPreset> buttons)
+        {
+            _lgService = lgService;
+            _buttons = buttons;
+
+            InitializeComponent();
+        }
+
+        private void RemoteControlForm_Load(object sender, EventArgs e)
+        {
+            foreach (var preset in _buttons)
+            {
+                var button = new Button();
+                button.ForeColor = Color.White;
+                button.FlatStyle = FlatStyle.Flat;
+                button.FlatAppearance.BorderColor = Color.DarkGray;
+                button.FlatAppearance.MouseOverBackColor = Color.DarkGray;
+                button.Text = preset.name;
+                button.Click += ButtonClick;
+                button.Tag = preset;
+
+                button.Parent = flowPanel;
+            }
+        }
+
+        private void ButtonClick(object sender, EventArgs e)
+        {
+            var preset = (LgPreset)(sender as Button).Tag;
+
+            _lgService.ApplyPreset(preset);
+        }
+
+        private void btnClose_Click(object sender, EventArgs e)
+        {
+            Close();
+        }
+
+        private void RemoteControlForm_MouseDown(object sender, MouseEventArgs e)
+        {
+            if (e.Button == MouseButtons.Left)
+            {
+                NativeMethods.ReleaseCapture();
+                var intPtr = new UIntPtr(2);
+                NativeMethods.SendMessageW(Handle, NativeConstants.WM_NCLBUTTONDOWN, intPtr, IntPtr.Zero);
+            }
+        }
+    }
+}