Feat: Initial claimERC721Assets functionality

refactor: update L1/L2AssetHandler to use prefix operators instead of postfix
refactor: encode tokenIds as memory instead of calldata in L2AssetHandler._withdrawERC721Assets
refactor: encode tokenIds as memory instead of calldata in PayloadEncoder.encodeWithdrawERC721AssetsPayload
feat: define claimERC721Assets in IL2AssetHandler
feat: add initial claimERC721Assets fn to L2AssetHandler

Insrt-Finance / insrt-v2-contracts