CmdPal: Port the devhome perf widgets to cmdpal (#45217)

Pretty direct port of the code, to prove it works.

There's definitely some improvement to be made here, esp WRT to the
network and GPU listing - networks should all just be listed. Or at
least automatically track the active one. And GPU should aggregate a
bunch of stats.

And we can probably add the details to these list items.

But most importantly, _it works_.

re: #45201

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/Icons.cs

@@ -0,0 +1,31 @@
+// 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 Microsoft.CommandPalette.Extensions.Toolkit;
+
+namespace Microsoft.CmdPal.Ext.PerformanceMonitor;
+
+internal sealed class Icons
+{
+    internal static IconInfo CpuIcon => new("\uE9D9"); // CPU icon
+
+    internal static IconInfo MemoryIcon => new("\uE964"); // Memory icon
+
+    internal static IconInfo DiskIcon => new("\uE977"); // PC1 icon
+
+    internal static IconInfo HardDriveIcon => new("\uEDA2"); // HardDrive icon
+
+    internal static IconInfo NetworkIcon => new("\uEC05"); // Network icon
+
+    internal static IconInfo StackedAreaIcon => new("\uE9D2"); // StackedArea icon
+
+    internal static IconInfo GpuIcon => new("\uE950"); // Component icon
+
+    internal static IconInfo NavigateBackwardIcon => new("\uE72B"); // Previous icon
+
+    internal static IconInfo NavigateForwardIcon => new("\uE72A"); // Next icon
+}
+
+
+#pragma warning restore SA1402 // File may only contain a single type