Request to Configure Proof of Work Difficulty on the Fly

[TheGreatAxios]

Is your feature request related to a problem? Please describe.
There is no direct problem, however, Proof of Work is utilized quite a bit for sFUEL Distribution and sometimes even direct execution. It would be great to be able to increase/decrease the difficulty on-chain for Proof of Work so that it can be used to slow down execution and create better protections.

Describe the solution you'd like
It would be great to see this settable via a predeployed contract.