Pawan Dhananjay 5243cc6c30 Add a u256_hex_be module to encode/decode U256 types (#3321) ... ## Issue Addressed Resolves #3314 ## Proposed Changes Add a module to encode/decode u256 types according to the execution layer encoding/decoding standards https://github.com/ethereum/execution-apis/blob/main/src/engine/specification.md#structures Updates `JsonExecutionPayloadV1.base_fee_per_gas`, `JsonExecutionPayloadHeaderV1.base_fee_per_gas` and `TransitionConfigurationV1.terminal_total_difficulty` to encode/decode according to standards Co-authored-by: Michael Sproul <micsproul@gmail.com>		2022-07-15 07:31:21 +00:00
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src	Add a u256_hex_be module to encode/decode U256 types (#3321)	2022-07-15 07:31:21 +00:00
Cargo.toml	Update to Rust 1.59 and 2021 edition (#3038)	2022-02-25 00:10:17 +00:00