Added salt and pepper! (aka. the mods mainframe)

Devlog #1
As of this devlog I added a majority of the function-wise things for the mod. So far you can:

• Find salt in its rock form underground, generating naturally
• Find pepper as a wild plant in the jungle, inspired by cocoa beans
• Proccess salt into its fine/powder form
• Proccess pepper into its boiled form by putting it into a cauldron above a campfire
• Proccess the boiled pepper further into its dryed form, achieved by cooking boiled pepper in a furnace
• Last proccessing is the dryed pepper into its fine/powdery form
• Last but not least, use salt or pepper on any food item to enhance it a little bit

So far all textures in the screenshots are just cheap placeholders, all will be replaced in the next one!