KPDR safeties first beta release

[idlechild]

I should probably add a comment about the difference between an energy adjustment and a refill adjustment. Energy adjustments play nice with other safeties, but sometimes you need the refill adjustment which does an overwrite. Not sure where to put those comments though.

Also I expect there will be some adjustments before this is ready for release. I'd also like to add phantoon-first safeties, but probably not going further than that.

[idlechild]

I got a request for documentation and I think that's a good idea. I'm going to try to add a new webpage, but not linked from the main page just yet. That way I can just post a wall of text there and reference it from discord instead of posting wall of text to discord.