Add dotnet test --list-devices support for MAUI (#54565)

Author: jonathanpeppers

src/Cli/Microsoft.DotNet.Cli.Definitions/CommandDefinitionStrings.resx

@@ -684,6 +684,12 @@ If not specified the file will be generated inside the default 'TestResults' dir
   <data name="CommandOptionListDevicesDescription" xml:space="preserve">
     <value>List available devices for running the application.</value>
   </data>
+  <data name="CommandOptionListDevicesDescriptionForTest" xml:space="preserve">
+    <value>List available devices for running tests.</value>
+  </data>
+  <data name="CommandOptionDeviceDescriptionForTest" xml:space="preserve">
+    <value>The device identifier to use for running tests.</value>
+  </data>
   <data name="CommandOptionProjectHelpName" xml:space="preserve">
     <value>PROJECT_PATH</value>
   </data>

src/Cli/Microsoft.DotNet.Cli.Definitions/Commands/Test/TestCommandDefinition.MicrosoftTestingPlatform.cs

@@ -135,10 +135,16 @@ public sealed class MicrosoftTestingPlatform : TestCommandDefinition, ICustomHel
 
         public readonly Option<string> DeviceOption = new("--device")
         {
-            Description = CommandDefinitionStrings.CommandOptionDeviceDescription,
+            Description = CommandDefinitionStrings.CommandOptionDeviceDescriptionForTest,
             HelpName = CommandDefinitionStrings.CommandOptionDeviceHelpName
         };
 
+        public readonly Option<bool> ListDevicesOption = new("--list-devices")
+        {
+            Description = CommandDefinitionStrings.CommandOptionListDevicesDescriptionForTest,
+            Arity = ArgumentArity.Zero
+        };
+
         public readonly Option<string> ArtifactsPathOption = CommonOptions.CreateArtifactsPathOption();
 
         public const string BuildTargetName = "_MTPBuild";
@@ -177,6 +183,7 @@ public MicrosoftTestingPlatform()
             Options.Add(NoLaunchProfileOption);
             Options.Add(NoLaunchProfileArgumentsOption);
             Options.Add(DeviceOption);
+            Options.Add(ListDevicesOption);
             Options.Add(MTPTargetOption);
         }