adds a parameterized delay on realized flow

[unconst]

Description

Implementation for delayed flow credit which arbitrarily increases exposure of staking operations to root prop. Under sufficient conditions (high average net flow) makes self-staking costly.

Conservative estimate of delay length required for terms

e = subnet emission
p = price
r = root prop
f = average per block flow
b = purchase amount
d = required delay

d > (e * b) / (12 * r * p * f )

Example:

e = 0.02
p = 0.04
r = 0.1
f = 0.1
b = 5000
d = ( 0.02 * 5000 ) / (12 * 0.1 * 0.04 * 0.1) = 20k block delay.