CmdPal: Move core projects into Core/ (#41358)

Couple little things here:

* Makes `Microsoft.CmdPal.Common` a `Core` project
* Moves the `CmdPal.Core` projects into a single `Core/` directory
* Adds the `CoreLogger` which I had stashed in
https://github.com/microsoft/PowerToys/compare/dev/migrie/40113/extension-hosts-try-2...dev/migrie/b/remove-core-managedcommon-dep
a while back
* De-duplicates a bunch of commands that were in both Apps and Common
* moves all the commands into the toolkit, instead of in the Common
project

src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions.Toolkit/ManagedCsWin32/Shell32.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.Runtime.InteropServices;
+
+namespace ManagedCsWin32;
+
+internal static partial class Shell32
+{
+    [LibraryImport("SHELL32.dll", EntryPoint = "ShellExecuteExW", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool ShellExecuteEx(ref SHELLEXECUTEINFOW lpExecInfo);
+
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+    public struct SHELLEXECUTEINFOW
+    {
+        public uint CbSize;
+        public uint FMask;
+        public IntPtr Hwnd;
+
+        public IntPtr LpVerb;
+        public IntPtr LpFile;
+        public IntPtr LpParameters;
+        public IntPtr LpDirectory;
+        public int Show;
+        public IntPtr HInstApp;
+        public IntPtr LpIDList;
+        public IntPtr LpClass;
+        public IntPtr HkeyClass;
+        public uint DwHotKey;
+        public IntPtr HIconOrMonitor;
+        public IntPtr Process;
+    }
+}