Prototype bolt type slot system

[rachelnertia]

• [x] associative container containing all possible quarrel types
• [x] associative container containing all quarrel types available to the player
• [x] 3-slot structure containing the quarrel types currently held by the player
• [ ] in-game UI for swapping in and out of slots
• [x] ImGui for swapping in and out of slots
• [x] cooldowns on each type to prevent the player from just spamming one type of quarrel over and over