datacutr v0.1.0

This is the first release of {datacutr}

This release includes first release of functions,
apply_cut() - Applies the datacut based on the datacut flagging variables
create_dcut() - Create Datacut Dataset (DCUT)
date_cut() - xxSTDTC or xxDTC Cut
impute_dcutdtc() - Imputes Partial Date/Time Data Cutoff Variable (DCUTDTC)
impute_sdtm() - Imputes Partial Date/Time SDTMv Variables
process_cut() - Wrapper function to prepare and apply the datacut of SDTMv datasets
pt_cut() - Patient Cut
special_dm_cut() - Special DM Cut to reset Death variable information past cut date