Function forest_actor::miner::pledge_penalty_for_undeclared_fault

pub fn pledge_penalty_for_undeclared_fault(
    reward_estimate: &FilterEstimate, 
    network_qa_power_estimate: &FilterEstimate, 
    qa_sector_power: &StoragePower, 
    network_version: NetworkVersion
) -> TokenAmount

This is the SP(t) penalty for a newly faulty sector that has not been declared. SP(t) = UndeclaredFaultFactor * BR(t)