feat: support importing blocks without merkle calculation

[j75689]

Description

support importing blocks without merkle calculation mode

Rationale

Add a flag --optimize.skip-state-root-validation to disable state root calculation during block importing. This can be useful if the state root calculation is taking too long.
However, be cautious when using this mode, as the accuracy of node data (PlainState) will no longer be strongly guaranteed.

Example

1. start a node with --optimize.skip-state-root-validation flag

bsc-reth node --chain bsc --http --http.port 8545 --optimize.skip-state-root-validation

(Optional) 2. Clear Trie/Hashed Account/Storage table to save database cost.

bsc-reth db clear mdbx StoragesTrie
bsc-reth db clear mdbx AccountsTrie
bsc-reth db clear mdbx HashedAccounts
bsc-reth db clear mdbx HashedStorages

bsc-reth db stats

Changes

Notable changes:

• add new flag to start nodes bypassing merkle root calculation

Potential Impacts

• no