sc 0.55.0, codec 0.21.2, chain 0.12.0, sdk 0.8.0

• Integrating Spica changes into the framework:
  • EGLD+ESDT multi-transfers are now possible:
    • changed the handling of call values: EGLD is treated almost the same as an ESDT in all_transfers and multi_egld_or_esdt, old ESDT methods are given some protection against unexpected scenarios
    • changed the tx unified syntax for sending EGLD+ESDT from contracts, interactors and tests;
    • support in the Rust VM.
  • New built-in functions in the ESDTSystemSCProxy: ESDTModifyRoyalties, SDTSetNewURIs, ESDTModifyCreator, ESDTMetaDataRecreate, ESDTMetaDataUpdate.
• Interactor support for "set state" on the chain simulator.
• Fixed ownership for ManagedVec iterators, specifically reference iterators only produce references to the items.
• Syntax cleanup:
  • #[payable] now allowed instead of #[payable("*")];
  • register_promise allows callback, without calling a function on destination.
• Refactoring and optimizations:
  • Simplified the callback selector;
  • Performance improvements in ManagedVec iterators;
  • Removed some unnecessary bound checks in multi_esdt.