fixed a typo that made it impossible for props to drop an item with an associated achievement (RGON only)

- updated all custom shop layouts to prevent unavoidable damage instances and ugly looks in cases where the layouts are used for Member Card shops
- REPENTOGON only: upon full destruction of a giant prop, only items that are unlocked will be able to drop from it

tweaked all Giant Shopkeeper shop layouts to ensure the donation/restock machine always spawns in a grid #4 and Member Card special shop trapdoor isn't being obstructed

- reduced the weight of all giant props rooms to 0.1
- slight tweaks to giant shopkeeper sprites to make it have a consistent 1 pixel thick outline along with other sprites

- added new props: Giant Shopkeepers and Giant Bomb Rocks!
- added missing shadows in the textures of Mausoleum and Gehenna variants of Giant Skulls

added giant skulls for Gehenna!

- thumbnail update!!!
- multiple tweaks to rooms, as well as to combat actions and drops of giant props, mostly aimed at nerfing those props a tad bit
- fixed corpse polyps spawning hostile maggots (they were intended to be friendly)
- unique FF sprite for cathedral pot should now also work with the Evade Taxes mod (that only contains FF scenery)

giant skulls for Gehenna soon! promise!

- Giant Pots can now be encountered in Cathedral (with a special skin if Fiend Folio is enabled (thanks Vermin!)), and Giant Skulls - in Mausoleum
- Improved combat actions and consumable drop actions of Giant Polyps

- added Giant Polyps for chapters 4 and 4.5!

- added Giant Buckets for Downpour and Dross!
- slightly reduced rarity of Giant Pots and the amount of pickups they drop
- removed 2 items unique to Giant Fool's Gold and updated the prop's pool to include 4 mining items (like Remote Detonator)
- fixed pickups dropped by giant props sometimes getting stuck inside of the prop until you fully destroy it; pickups can also now be dropped onto cobwebs and on-off spikes, which was previously impossible
- more code restructure and polishing