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/modplatform/technic/SingleZipPackInstallTask.cpp

@@ -50,6 +50,7 @@ void Technic::SingleZipPackInstallTask::executeTask()
     auto job = m_filesNetJob.get();
     connect(job, &NetJob::succeeded, this, &Technic::SingleZipPackInstallTask::downloadSucceeded);
     connect(job, &NetJob::progress, this, &Technic::SingleZipPackInstallTask::downloadProgressChanged);
+    connect(job, &NetJob::stepProgress, this, &Technic::SingleZipPackInstallTask::propogateStepProgress);
     connect(job, &NetJob::failed, this, &Technic::SingleZipPackInstallTask::downloadFailed);
     m_filesNetJob->start();
 }