[PLAT-5751] : In TimeCalculator class add a function getTimeBetween using a calendar as input
[PLAT-5742] ; use the daycounter business/252 in the toderive function for the files CouponFixedAccruedCompoundingDefinition, SwaptionPhysicalFixedCompoundedONCompoundedDefinition and SwaptionCashFixedCompoundedONCompoundedDefinition.