Reset of ShredOS git history to start with v2021.08 update.

[PartialVolume]

Please note, those that are thinking of pushing commits to ShredOS and have already forked, to keep in sync with ShredOS git history you will need to delete your forked entry and re-fork.

Unfortunately, I found it necessary to reset the ShredOS git history as it contains over 50,000 commits related to buildroot history which I don't need in the history going forward.

As I update ShredOS to newer buildroot builds I'll be doing it in such a way that I can keep ShredOS commits but not include all the many thousand buildroot commits.

I apologise for this and hope that this doesn't cause too much of a problem if you are currently working on any code as of 20/Feb/2022.