Excludes $value from $select guidance. Closes #286 (#288)

Author: waldekmastykarz

m365-developer-proxy-plugins/Guidance/GraphSelectGuidancePlugin.cs

@@ -28,6 +28,7 @@ private async Task AfterResponse(object? sender, ProxyResponseArgs e) {
     private static bool WarnNoSelect(Request request) =>
         ProxyUtils.IsGraphRequest(request) &&
         request.Method == "GET" &&
+        !request.RequestUri.AbsolutePath.EndsWith("/$value", StringComparison.OrdinalIgnoreCase) &&
         !request.Url.Contains("$select", StringComparison.OrdinalIgnoreCase) &&
         !request.Url.Contains("%24select", StringComparison.OrdinalIgnoreCase);