Alchemist Brotherhood quest tweaks

[netzakh]

• The ingredients dialogue displays the number of kinds of ingredients found in its title (sth like Ingredients (31/36)).
• Maj'Eyal adventurer parties (but not magic-hating Ziguranth patrols, of course) have a high (80%+?) chance to drop an ingredient not found yet. Rationales:
  • "I've already a handful of adventurers out scouring the unpleasant places of the world for these ingredients. Dally and one of them shall claim the prize while you're out" and similar talk by other Brotherhood wannabes. It seems plausible that there are such adventures in the adventurer parties.
  • Remove frustration from not being able to find those d-d ritch stingers (before it becomes possible to fly the fortress to the Island of Rel).

[supermini]

You can find ritch stingers in Eruan and ruined dungeon(if you're lucky). Eruan is very late game, but I don't see why alchemist quest is something that you should be able to consistently finish early in the game.