1.0.0

Added

• Add support for extensions using ExtType.
• Add the Python implementation of mashpack.Packer.
• Add the Python implementation of mashpack.Unpacker.
• Add the ARRAY8, ARRAY16, ARRAY32 data types for typed arrays to save
  space on header information.
• Add the MARRAYP, MARRAY8, MARRAY16, and MARRAY32 data types for
  mixed type arrays which are equivalent to MessagePack arrays.
• Add the EXT16 data type.
• Add all the base data types: STRP, MAPP, INTP, NINTP, ARRAYP,
  FALSE, TRUE, MAP8, MAP16, MAP32, STR8, STR16, STR32,
  ARRAY8, ARRAY16, ARRAY32, BIN8, BIN16, BIN32, INT8, INT16,
  INT32, INT64, UINT8, UINT16, UINT32, UINT64, FLOAT32,
  FLOAT64, EXT8, EXT32, and NULL.

Removed

• Removed the ARRAYP data type in favor of MARRAYP.
• Removed the MATRIX16 and MATRIX32 types in favor of extensions.