Orbs System

[lekevicius]

The largest rework of how Orb contracts work:

• Pausing Harberger tax and not allowing additional questions if a question remains unanswered past the deadline
• Replaces Oaths with collateral (native token, ERC20 or ERC721) claimable after missed deadline. Called Pledges and implemented in PledgeLocker
• Replaces OrbPond and Orb proxies with a unified Orb System, sharing orb IDs
• Splits and modularizes auction mechanic to a generic Allocation mechanic, allowing for different implementations
• Introduces Invocation Delegation mechanic to allow auctioning or selling individual invocation rights
• Introduces Invocation Access Vendor contract to allow Keeper to sell read access to private invocations
• Incorporates payment splitter logic to contracts themselves, simplifying platform revenues
• Unifies earnings mechanic in a base Earnable contract
• Adds ability to self-onboarding (initially with authorized signature)
• Removes ERC-721 compatibility
• Removes cleartext length tracking on-chain
• Removes flagging on-chain
• Upgrades the base contracts from OpenZeppelin v4 to v5