feat: Propogated subtask progress

Oh boy this is big.

> TaskStepProgress struct is now QMetaObject compatabile and can be sent through signals
> Task now has a method to propogates sub task progress it must be signal bound by each task containing a task wishing to report progress of it's children.
> Downloads report speed
> Tasks now have UUIDS to track them
  - use when reporting
  - use when logging
  - use when storeing them or objects related to them

Signed-off-by: Rachel Powers <508861+Ryex@users.noreply.github.com>

launcher/tasks/Task.cpp

@@ -148,6 +148,11 @@ void Task::emitSucceeded()
     emit finished();
 }
 
+void Task::propogateStepProgress(TaskStepProgressList task_progress)
+{
+    emit stepProgress(task_progress);
+}
+
 QString Task::describe()
 {
     QString outStr;