[1.7.3] Lich quest gets bugged if you killed Celia before

[Effigy]

Version 1.7.3 changed Lich prodigy so any class could get the quest "From Death, Life" if you train level 5 Blurred Mortality. However, if you already killed Celia before getting 5/5 Blurred Mortality, the quest objective "beating heart of a powerful necromancer" remains uncompleted.

I think this could be fixed one of two ways:
1) When adding the quest "From Death, Life" check if quest "And now for a grave" has been completed. If so, mark the relevant objective in the former quest as complete.
2) Turn the "beating heart" into an ingredient that you get when you kill Celia. When adding quest "From Death, Life", it would check if you already have this ingredient. If not, the quest would need to be updated when you find the ingredient.

The second solution is probably better because it would still work if another source for the "beating heart" gets added, possibly in another campaign.

[nsrr]

Fix submitted. https://git.net-core.org/tome/t-engine4 ... quests/764

Checks if "And now for a grave" is complete after granting Lichform quest from learning Blurred Morality to level 5 and updates the Lichform "heart" objective if so.