* Fix starting weapon locations usage
Makes a fresh copy of starting weapon locations when get_pool_core is ran
Should fix the issue of dangerous_weapon_locations getting appended to the list for other worlds past the first world that has dangerous StartingPosition, as well as running into the error if ExpandedPool was different between players
Credit for fix goes to @Silvris in the AP Discord
- consolidated declaration and population of level location lists
- moved floor_location_game_ids_late declaration for consistency
- moved generate_itempool to create_items, where it belongs
- mention that expanded pool includes take any caves in the option description again
- removed unnecessary StartingPosition check regarding Take Any Caves (leftover from older StartingPosition behavior I believe)
- use proper comparisons to option keys instead of hardcoded ints