userUnstakeAmount= Amount of BNB user intends to unstake.
accelerateSteps= Number of queue sequences of LBNB in batches that user would want to overtake in the unstaking queue.
priceToAccelerateUnstake= Number of SBF to be burned to move one unstake BNB forward. ( a constant number that can be tweaked in future using governance vote) Current Value is set at = "10".
sumOfPriorUnstakeAmount= Amount of BNB queued in front of the current transaction.