ERC-7638 Batch Calls Encoding in SCA

DraftERCcreated 2024-02-26

Encode multiple calls for smart contract account (SCA) with atomic and saving gas

Authors: George (@JXRow), Zisu (@lazy1523)

Functions this standard introduces (3)

`0x142d328d`	`atomSignCall(bytes,uint32,bytes)`
`0xf31cc894`	`executeOperation(address,bytes)`
`0xebaf3eb5`	`makeAtomSignInvalid()`