dec 0.4.6

0.4.6 - 2022-01-14

• Add functions to take Decimal values to and from packed binary-coded
  decimals using the
  decPacked module.

• Add round_to_place and reduce_to_place to Decimal<N>, which provide
  "places from the left" rounding, akin to a shift right, round, and shift
  left. reduce_to_place performs the operation, as expected, and
  simultaneously performs a reduce.

• Refactor to_raw_parts and to_raw_parts to use &[u16] to represent a
  Decimal's lsu, largely reverting the change from
  0.4.2.

  The reversion addresses an oversight that would corrupt values if the LSU's
  data was moved between machines with different endianness.