ERC-8348 Drafts Tokenized Financial Lease Standard

Team drafted IFinancialLease ERC for tokenized financial leases. Lessor position is ERC-721, tokenId == leaseId. Schedules tracked in abstract units, converted via oracle; ERC-4626-style rounding. InArrears objective, InDefault requires declarer. Asset escrow optional. Seeks feedback on payment imputation, oracle staleness, lessee tokenization, titled-asset composition. PR to ethereum/ERCs pending.