Adds a DebugChannel for TelemetryClient

Core/Telemetry/DebugTelemetryChannel.cs

@@ -0,0 +1,21 @@
+using Microsoft.ApplicationInsights.Channel;
+
+namespace Core.Telemetry
+{
+    public class DebugTelemetryChannel : InMemoryChannel, ITelemetryChannel
+    {
+        private readonly string _filePath;
+        public ITelemetryChannel _defaultChannel;
+
+        public DebugTelemetryChannel(string filePath)
+        {
+            _filePath = filePath;
+        }
+        public new void Send(ITelemetry item)
+        {
+            base.Send(item);
+            var logEntry = $"{DateTime.UtcNow:u}|{item.Context.Operation.Name}|{item.Context.Operation.Id}";
+            //File.AppendAllText(_filePath, logEntry + Environment.NewLine);
+        }
+    }
+}