[N3] Init Treasury

[shargon]

Description

This pull request introduces a new native contract called Treasury to the Neo smart contract platform and integrates it into the codebase. Unit tests are updated to cover the new contract and its identifier.

New Treasury contract integration:

• Added the new Treasury native contract implementation in Treasury.cs, including NEP-26 and NEP-27 support, payment callbacks, and committee verification logic.
• Registered the Treasury contract as a static property in NativeContract.cs, making it accessible like other native contracts.
• Updated test setup data to include the Treasury contract definition and manifest for unit testing.
• Extended native contract ID tests to verify the new Treasury contract ID (-11).

Bonus calculation refactor:

• Renamed variables in the CalculateBonus method of NeoToken.cs from sumNeoHold to sumGasPerBlock for improved clarity and consistency, and updated the return statement accordingly. [1] [2]

Type of change

• Optimization (the change is only an optimization)
• Style (the change is only a code style for better maintenance or standard purpose)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• UT_NativeContract

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[erikzhang]

What is the purpose of this native contract?

[shargon]

What is the purpose of this native contract?

2.4 Neo4 roadmap said:

GAS Treasury Allocation:
A portion of newly generated GAS is allocated to the Treasury.

So we will need a treasury contract, isn't it?

[vncoelho]

I think it looks like to be a good idea.

[erikzhang]

OK, it's a good idea.

[AnnaShaleva]

Unit-tests are failing.

The base branch was changed.

[shargon]

moved to N3, ready for review @neo-project/core

[shargon]

@erikzhang shall this be ported to N4?

[erikzhang]

Please port to N4.