[MERGED PR] Cyborg movement speed rebalance

[Ikea]

I see. Treads do not exist in a vacuum.
Humans with treads being faster than cyborgs is bad.

The flash is already too powerful when used against borgs, and the only defense is currently: Don't get flashed. Speed helps with that.
Or get a reboot + teleport upgrade. Which requires mining.

The reason why I consider it outside of scope is mostly because this doesn't change much with humans with treads going against borgs in a way that I consider super unacceptable. In the very specific scenario of a borg going against a human with treads, the only borg this seriously effects in a negative manner is light borg with treads. A key goal of this pr is to make light borg with treads less good, so I am perfectly fine with them being less good. 

This pr already changes a lot as is, so I'd rather take things one change at a time instead of toss a bunch of balance at the wall and hope it works out. I'm not against a tread nerf for humans per say (though I don't consider one needed as treads for humans as they're not a clear meta pick), but if one is needed, I'd rather see that a tread nerf is needed first.