This module adds two traits that implement bincode-based serialization.
BeSer implements methods for big-endian encoding/decoding.
LeSer implements methods for little-endian encoding/decoding.
Right now, the BeSer and LeSer methods have the same names, meaning you
can't `use` them both at the same time. This is intended to be a safety
mechanism: mixing big-endian and little-endian encoding in the same file
is error-prone. There are ways around this, but the easiest fix is to
put the big-endian code and little-endian code in different files or
submodules.
