(v1.4.0) Ritual hotbar and fixes

Added a ritual hotbar. Lists all the rituals in a pre-set order and shows their hotkeys, cooldowns and costs. You can click on them to cast them. You can drag the hotbar around by the left hand area, or click on it to hide/collapse it.

Further hardened saves backup system against crashes/blackouts during prestige screen and other rare obscure ways that could cause the player to lose their prestige points. This was a lot of hard work that will hopefully actually bear fruit.

Fixed an issue where the player could be locked out from input due to a bug from the Foundations of Stone upgrade.

Buffed Denbreaker's Hail permanent damage increase when destroying a den from 0.2/0.4/0.6% to 0.4/0.8/1.2%.

Further reduced the gold, mithril and soul costs of Nuclear Research.

Megapick damage now scales diminishingly with miners, but the base damage is higher and there is no max cap.

The odds of getting quest artifacts such as Philosopher's Stone are now slightly increased per mountain level.

DPM/OPM panel positions now remain between prestiging.

Fixed a few steam achievements sometimes not being properly awarded.

Fixed some rare ritual cooldown loading bug that could make a ritual have days long CD.

Fixed a few missing text elements, localization issues and typos.

Fixed various tooltip issues and mismatches.

Fixed a couple rare crashes.

System preparations for future changes and upcoming localization support. ;)

Other minor fixes and tweaks.