Quest challenges naming

[Max mtg]

This morning I saw a bug report "Game crashes upon beating Pharaoh's challenge."

That has to be related to QuestChallenges, but to hint which file out of those questXXXX.dck would be a problem source. I have renamed all the challeges after their titles. That makes analysis much easier

Challenges' ids no longer need to be numeric. If you add two challenges with the same ID, game will print a warning to stderr.

Quest challenges are displayed in deck selector as with their titles (not names).
Whoever starts a game on the side of a challenge event deck will get the predefined lives and extra cards on their side (as described in challenge file)


I also had to apply a deckchooser component for gauntlet-related screens to use a single code path to get the selected deck.


Please test quests and report possible problems.