v0.21.1

[0.21.1] - 2022-11-21

Added

• ErgoBox::from_box_candidate in Wasm API #651;

Changed

• unparseable register value should not prevent parsing ErgoBox from JSON #647;
• rename NonMandatoryRegisters:get to NonMandatoryRegisters::get_constant and return None if the register value is unparseable #647;
• add NonMandatoryRegisters:get returning new RegisterValue holding either a Constant or unparseable bytes #647;