common: refactor common library pt2 (#8588)

- remove common lib
- split settings, remove common-md
- move ipc interop/kb_layout to interop
- rename core -> settings, settings -> old_settings
- os-detect header-only; interop -> PowerToysInterop
- split notifications, move single-use headers where they're used
- winstore lib
- rename com utils
- rename Updating and Telemetry projects
- rename core -> settings-ui and remove examples folder
- rename settings-ui folder + consisent common/version include

src/settings-ui/Microsoft.PowerToys.Settings.UI/ViewModels/Commands/ButtonClickCommand.cs

@@ -0,0 +1,36 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Windows.Input;
+
+namespace Microsoft.PowerToys.Settings.UI.ViewModels.Commands
+{
+    public class ButtonClickCommand : ICommand
+    {
+        private readonly Action _execute;
+
+        public ButtonClickCommand(Action execute)
+        {
+            _execute = execute;
+        }
+
+        // Occurs when changes occur that affect whether or not the command should execute.
+        public event EventHandler CanExecuteChanged;
+
+        // Defines the method that determines whether the command can execute in its current state.
+        public bool CanExecute(object parameter)
+        {
+            return true;
+        }
+
+        // Defines the method to be called when the command is invoked.
+        public void Execute(object parameter)
+        {
+            _execute();
+        }
+
+        public void OnCanExecuteChanged() => CanExecuteChanged?.Invoke(this, EventArgs.Empty);
+    }
+}