Gathering: Inventory v2

[DasLixou]

I saw inventory_v2 on the roadmap and my interest was picked up and equipped as armor.

So we probably want an easy API for container inventories (like chests), player inventories (which can also contain equipment slots and a 2x2 crafting grid + result).

I'm a bit unsure on valence's direction and if we would like to make it more low level, like some sort of as it is now where we get a low level ClickSlotEvent and need to get the useed inventory via the OpenInventory component or if we want something more abstract and simpler where we would get a InventoryId which we then can use to query the inventory and have multiple types for slots like Hotbar(0..=9) and Equipment::Legs rather than raw u16. This would also help make the code more readable because the slot id is often offset with other variables because for example we need to convert the hotbar to a slot, clipping the players inventory to only the main slots (used when showing a "split" inventory window) or having to index slots in the other half of the "split" window.

Would we rather choose the low level or abstract approach?

[DasLixou]

We could represent different types of Inventories as different structs. But because we can't query for traits (or can we?), we should probably use an enum. this also looks interesting