feat: add additional gas usage info from bootloader

[nbaztec]

Motivation

The gas usage value in VmExecutionStatistics is not representative of the actual gas a user pays which is observable when checking the values from the RefundTracer.

Gas Limit: 1073741824
Gas spent on computation: 260304
Gas spent on pubdata: 15827000
Pubdata published: 931
...
...
VmExecutionStatistics { gas_used: 25901, ... }

Solution

Utilize the BootloaderDebugTracer from era-test-node's modified bootloader.yul to utilize the gas usage parameters, to compute the accurate information.

Gas Limit: 1073741824
Gas spent on computation: 260304
Gas spent on pubdata: 15827000
Pubdata published: 931
...
BootloaderDebug { total_gas_limit_from_user: 1073741824, reserved_gas: 993741824, gas_per_pubdata: 17000, gas_limit_after_intrinsic: 79975930, gas_after_validation: 79906438, gas_spent_on_execution: 166742, gas_spent_on_bytecode_preparation: 120492, refund_computed: 79739696, refund_by_operator: 1057914824, intrinsic_overhead: 14070, required_overhead: 11200, operator_overhead: 10000, overhead_for_length: 11200, overhead_for_slot: 10000 }
...
...
gas usage limit=80000000 execution=260304 pubdata=15827000 refunded=1057914824

[elfedy]

👏