updated PensionCalculator
updated PensionCalculator

with salary history method

qarmitage/pensionreform,BenGalewsky/pensionreform,BenGalewsky/pensionreform,qarmitage/pensionreform,BenGalewsky/pensionreform,qarmitage/pensionreform,BenGalewsky/pensionreform,qarmitage/pensionreform