Add btcli wallet regen-hotkeypub option to btcli #513
Description
At present, we have regen-coldkey, regen-coldkeypub, and regen-hotkey, but no regen-hotkeypub
Some query functions (such as btcli stake child get) do not allow specifying a wallet address, and must specify a coldkey/hotkey combination that you have added. This prevents performing lookups (such as checking chk information) in btcli for any hotkeys that the person running the query does not "own".
In the wake of the hotkey leak drama, we have been assisting multiple validators with their hotkey splitting process, and the lack of this option has made investigating/diagnosing potential hotkey/chk issues much more difficult, as well as making other network research projects more cumbersome.
An alternative would be adding the option to manual specify hotkeys for all lookup queries, but that would be a larger lift.