feat: Setting properties on a BlockState generically

[Sculas]

Currently, you need the concrete type of a block to set, for example, the facing.
However, this isn't possible in cases where you don't know the concrete type of a block.
Properties don't have FromStr implemented either, so you can't go from a waterlogged=true to Waterlogged(true).

All in all, this makes it very hard (almost impossible I'd say) to implement a WorldEdit schematic parser, because you can't parse a value like this one: minecraft:birch_stairs[facing=east,half=bottom,shape=straight,waterlogged=false] to it's corresponding BlockState.

My current workaround is to use a LUT, taken from here.