The order of fields in block headers is different than their order in HotStuff-rs block data

[lyulka]

Background

Protocol blocks can be converted into HotStuff-rs blocks:

• Block header’s hash, height, justify, and data_hash fields correspond to the identically named fields in HotStuff-rs blocks.
• The rest of block header’s fields (along with the block’s transactions and receipts) are packed into HotStuff-rs blocks’ data.

Problem

However, the order of the fields’ packing into HotStuff-rs data does not match the order of the fields in block header. In particular:	Block header	HotStuff-rs data
chain_id	chain_id
proposer	proposer
timestamp	timestamp
base_fee_per_gas	txs_hash
gas_used	state_hash
txs_hash	receipts_hash
receipts_hash	base_fee_per_gas
state_hash	gas_used
logs_bloom	logs_bloom
0-to* transactions	0-to* transactions
0-to* receipts	0-to* receipts

This mismatched order is also used to compute Data Hash.

Proposed resolution

In v0.5, the order of the packed fields will be made to follow the order of the fields in block header. The order the fields in the pre-image of data hashes will also be made to follow this order.

[lyulka]

Merged into and will be fixed in #8.