Function forest_actor::miner::initial_pledge_for_power

pub fn initial_pledge_for_power(
    qa_power: &StoragePower, 
    baseline_power: &StoragePower, 
    reward_estimate: &FilterEstimate, 
    network_qa_power_estimate: &FilterEstimate, 
    network_circulating_supply_smoothed: &TokenAmount
) -> TokenAmount