CmdPal: Removing Core projects (#45693)

Functionally, no differences.

- Removed Core projects.
- Core.Common => Microsoft.CmdPal.Common
- Core.ViewModels => Microsoft.CmdPal.UI.ViewModels

---------

Co-authored-by: Jiří Polášek <me@jiripolasek.com>

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Models/ExtensionObject`1.cs

@@ -0,0 +1,14 @@
+// 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.
+
+namespace Microsoft.CmdPal.UI.ViewModels.Models;
+
+public class ExtensionObject<T>(T? value) // where T : IInspectable
+{
+    public T? Unsafe { get; } = value;
+
+    public override bool Equals(object? obj) => obj is ExtensionObject<T> ext && ext.Unsafe?.Equals(this.Unsafe) == true;
+
+    public override int GetHashCode() => Unsafe?.GetHashCode() ?? base.GetHashCode();
+}

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Models/ExtensionService.cs

@@ -3,7 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using ManagedCommon;
-using Microsoft.CmdPal.Core.Common.Services;
+using Microsoft.CmdPal.Common.Services;
 using Microsoft.CommandPalette.Extensions;
 using Windows.ApplicationModel;
 using Windows.ApplicationModel.AppExtensions;

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Models/ExtensionWrapper.cs

@@ -4,7 +4,7 @@
 
 using System.Runtime.InteropServices;
 using ManagedCommon;
-using Microsoft.CmdPal.Core.Common.Services;
+using Microsoft.CmdPal.Common.Services;
 using Microsoft.CommandPalette.Extensions;
 using Windows.ApplicationModel;
 using Windows.ApplicationModel.AppExtensions;