_newCumulativeTotalfunction called on each farming activity.
_unbondingBlocksFactorwhich are permil (‰) values. These may be changed via the
changeUnbondingBlocksFactorfunctions. The effect of these is to adjust the vesting blocks and unbonding blocks settings of all deposits dynamically at the point of withdrawal (
changeSigmoidParamsfunction depending on the general farm population and the appetite of the community towards smaller and larger farmers.