More codecs! More combinators: oneOf, enum, repeated (packed/unpacked). Working recursive implicit auto-derivations for all the above. Assignment syntax now uses `:=` to avoid some clashes. Unit tests for all these.
More codecs! More combinators: oneOf, enum, repeated (packed/unpacked). Working recursive implicit auto-derivations for all the above. Assignment syntax now uses `:=` to avoid some clashes. Unit tests for all these.