Deprecate dose specific functions: addDailyDose,
addRoute, stratifyByUnit.
Deprecate drug use functions: addDrugUse,
summariseDrugUse.
Rename dailyDoseCoverage ->
summariseDoseCoverage.
Refactor of addIndication to create a categorical
variable per window.
New functionality
summariseProportionOfPatientsCovered,
tableProportionOfPatientsCovered and
plotProportionOfPatientsCovered.
Create require* functions.
New functionality summariseDrugRestart,
tableDrugRestart and plotDrugRestart.
New functionality addDrugUtilisation,
summariseDrugUtilisation and
tableDrugUtilisation