Generic telemetry (#1321)

* Add generateIdTokenUrl as an env var

* Add generateIdTokenUrl to env vars

* Add basic telemetry class and submit it on jobcompleted

* Use constructor overload

* Rename telemetry to jobTelemetry

* Rename telemetry file

* Make JobTelemetryType a string

* Collect telemetry

* Remove debugger

* Update src/Runner.Worker/ActionCommandManager.cs

Co-authored-by: Thomas Boop <52323235+thboop@users.noreply.github.com>

* Use same JobTelemetry for all contexts

* Mask telemetry data

* Mask in JobRunner instead

* Empty line

* Change method signature
Returning with a List suggests we clone it and that the
original doesn't change..

* Update launch.json

Co-authored-by: Thomas Boop <52323235+thboop@users.noreply.github.com>

src/Sdk/DTWebApi/WebApi/JobTelemetry.cs

@@ -0,0 +1,17 @@
+using System.Runtime.Serialization;
+
+namespace GitHub.DistributedTask.WebApi
+{
+    /// <summary>
+    /// Information about a job run on the runner
+    /// </summary>
+    [DataContract]
+    public class JobTelemetry
+    {
+        [DataMember(EmitDefaultValue = false)]
+        public string Message { get; set; }
+
+        [DataMember(EmitDefaultValue = false)]
+        public JobTelemetryType Type { get; set; }
+    }
+}