PineNaCl v0.5.0 adds refined constructors for the ByteList base class and slight changes on other modules.

Breaking Changes

Renamed HexCoder to Base16Encoder to align with Base32, Bech32 implementations
Rename Bech32Coder to Bech32Encoder for similar reasons above.
Added decodeNoHrpCheck static fucntion to Bech32Encoder for being able to decode and alreay encoded bech32 string.
Made internal Bech32 classes private.
Removed unnecessary fromList constructors, as ByteList based default constructors require Iterable
Added
- ByteList.withConstraint: Create a ByteList wit min, max length set to constraint specified
- ByteList.decodeWithConstraint: Same as above but from (base16, bech32 etc) encoded strings.
- ByteList.withConstraintRange: Create a ByteList within the min, max length range i.e.,
  the created ByteList mist be in the range.
- ByteList.decodeWithConstraintRange: Same as above but from (base16, bech32 etc) encoded strings.
Refactored the code based on these above changes.

Known Issues

Please check issues here