Account Inventory and more WIP

[jasonmoonen]

This PR includes the following changes and additions:

• Send Z1BR rulesets.
• Only send item definitions for items in the player's inventory.
• You can now salvage ammo in bulk.
• Proximity will now update when you drop an item.
• You should be able to trade with people; this means your shots should still count when you just died.
• Account inventory is now functional.
• Added account crates and bags. There are only a few working; if you want to know which ones work, you can look at RewardCrates.json.
• Updated the vehicle kit.
• Flash and fire traps are now functional.
• Landmines and traps will now be activated 10 seconds after being placed.
• You can now harvest a maximum of one brain from a zombie.
• You can now harvest cloth from screamers as well.
• You can no longer equip grenades in weapon slots, except for smoke grenades.
• Smoke grenades are now functional.
• Fixed the dam location for the /tp command.
• Fixed an exploit with stashes.
• Placement of stashes inside or near bases is now blocked.
• You can no longer place stashes near each other.
• Limited stash storage to 5000 bulk or 10 slots.
• Kits will now give you full durability conveys.