Handler Example: use ERC-20 token to pay for gas

[rakita]

It is one of the interesting use cases where gas can be paid from ERC-20 account.

Handler that needs to be overwritten:

• deduct_caller from PreExecution: https://bluealloy.github.io/revm/crates/revm/handler.html#preexecutionhandler
• reimburse_caller and reward_beneficiary from post execution: https://bluealloy.github.io/revm/crates/revm/handler.html#postexecutionhandler
• validation check for Account here: validate_tx_against_state https://bluealloy.github.io/revm/crates/revm/handler.html#validationhandler.

[mahmudsudo]

can i take on this ?

[rakita]

@royvardhan has amazing amount of progress here: https://github.com/royvardhan/revm/pull/1 it needs to be ported to new handler on main

[royvardhan]

@royvardhan has amazing amount of progress here: royvardhan#1 it needs to be ported to new handler on main

Working on the new handler example