Fixes writing unwanted characters to console when TerminalLogger is c…

…reated directly (#10678)

Call method that tells Windows to allow VT-100 output processing whenever the TerminalLogger is instantiated, rather than only in the MSBuild CLI entrypoint `xmake.cs`.

Fixes #10579.

src/MSBuild/TerminalLogger/TerminalLogger.cs

@@ -221,6 +221,8 @@ public ProjectContext(BuildEventContext context)
     /// </summary>
     private bool _showCommandLine = false;
 
+    private uint? _originalConsoleMode;
+
     /// <summary>
     /// Default constructor, used by the MSBuild logger infra.
     /// </summary>
@@ -263,6 +265,8 @@ public void Initialize(IEventSource eventSource, int nodeCount)
     /// <inheritdoc/>
     public void Initialize(IEventSource eventSource)
     {
+        (_, _, _originalConsoleMode) = NativeMethodsShared.QueryIsScreenAndTryEnableAnsiColorCodes();
+
         ParseParameters();
 
         eventSource.BuildStarted += BuildStarted;
@@ -358,6 +362,8 @@ private bool TryApplyShowCommandLineParameter(string? parameterValue)
     /// <inheritdoc/>
     public void Shutdown()
     {
+        NativeMethodsShared.RestoreConsoleMode(_originalConsoleMode);
+
         _cts.Cancel();
         _refresher?.Join();
         Terminal.Dispose();