Loot filter on the options window's Beute page

Per category (Gold, Tränke, white/blue/yellow/brown/green items) one of
Löschen (loot deleted at once), Ignorieren (pickup key leaves it), Standard,
Immer anzeigen (label without the labels key). Replaces the game's
PICKUPAUTO choice; settings in [loot] of sacredK.ini. docs/loot-filter.md.
Also ignore MSYS *.stackdump files.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.gitignore

@@ -6,3 +6,4 @@
 sacredK.ini
 /ghidra/
 /screenshots/
+*.stackdump