Generalizing drying racks and adding jerky.

[MistakeNot4892]

Map changes

• Added campfire to the fork in the road between Cynosure, the wilderness and the checkpoint.
• Expanded the wilderness shack to add some staple foods, a stove, some matches, some logs, some survival gear, and a latrine.

Drying changes

• Generalizing the drying backend to /obj/item and tied it into the grilling system.
• Renames/repaths drying racks to drying ovens.
• Renames/repaths tanning racks to drying racks.
• Drying racks can be dismantled with a wrench.
• Adds growns, meat, spidermeat and fish to the drying rack.
• Adds jerky items made by drying meat, spidermeat, fish and cutlets. Sprites by @evreeone!
• Increased the time taken for leather to dry.

Bonfire changes

• Repathed logs and wood to a shared /fuel type.
• Refactored/collapsed the bonfire backend and added fireplaces, campfires and stoves (icons from Nebula, unsure of the original source, will edit when LFP gets back to me hopefully).
• Removed the permanent bonfire types and reworked existing types to use the material of the fuel instead of the crafting fuel.
• Buffed fuel times for logs and wood, and added a dried wood type with a higher fuel value.
• Added grilling noise and fire crackle to the bonfire.

Other food changes

• Added grilled fish (1 fish fillet, in the oven). Icons also by @evreeone.
• Increased the time taken for grilling from 20 seconds to 1 minute for meat and 40 seconds for fruit.

[MistakeNot4892]

Appears to be working in a coarse sense, I didn't test every individual interaction, but bonfire cooking and drying works, as does rack drying and bonfire/stove interaction in general.

[Spookerton]

Seems operable!