[EPIC] Dual Feeschedule

[Ferparishuertas]

The platform includes a Feeschedule which assigns a gas cost per opcode, and enables Gas calculation.
We included a Gas throttling system based on Max Gas executiion per second ( At this moment of time setup to 15 M).

As a malicious actor couid either generate a slow DDOS, looping a non performing opcode, slow one, or a fast execution opcode, inside an easy deployable smart contract, added to the perfomance factor of every existing opcode, we envision the existence of a new Feeschedule, based on on gas per second (time to exhaust the network based on the opcode execution).

The idea is to implement a dual feeschedule, where are able to throttle by cost as nowadays or by gas/second , performance.

[david-bakin-sl]

If this epic ends up with modifications to our customized GasCalculator class this might be a good time to do #12991 as a part of it.