POI - CaveS Rebalance

[ephemeralstoryteller]

Addresses personal balance concerns with the spidercave. This PoI, in my opinion, was a bit too heavy on spiders and low on loot for being lower/middle wilderness, and I've noticed it's rarely engaged with because of it.

• Removes some spiders, leaving roughly three per chamber to prevent solos from becoming quite so overwhelmed.
• Replaces specials with random normal spiders, which can be plenty dangerous on their own.
• Sections off the east wing from the middle chambers with some boulders to, again, prevent swarming - this area is an annex between the 'caves' and the 'abandoned hideout', anyway. Moves a regular spider here to compensate for lack of reinforcement.
• Replaces the untextured 'wooden' shovel with a standard shovel.
• Moves the pickaxe slightly further from the landmine in the bottom right to incentivize grabbing it and using it to get around the PoI.
• Adds a broken gun to the middle area, 2 magazines for the compact .45, and a weapon power cell to make the area more worth it. Tools and furniture laying around should provide what's needed to repair broken weapons.