This crate provides high-performance data structures for operations where
the domain is all of u8, that is, every integer between 0 and 255
(inclusive).
ByteSet: Like HashSet<u8>, but implemented as a bit array. Nearly
all operations are const fn.
ByteTable: Lookup table implemented as [T; 256]. Eliminates the need
for bounds checking. Useful for caching expensive operations on u8s.