admiralophtha 0.1.0

New Features

• Added a function to derive the variable STUDYEYE in ADSL (issue #9).
• Added a function to derive the variable AFEYE in Occurrence datasets (issue #10).
• Added a function to derive the criterion flags in ADBCVA (issue #49).
• Added a function to convert LogMAR scores to ETDRS scores (issue #50).
• Added a function to convert ETDRS scores to LogMAR scores (issue #50).
• Created ophthalmology-specific test data for the EX SDTM domain, stored in {admiralophtha} package and accessible by calling data(admiralophtha_ex) (issue #36).
• Created ophthalmology-specific test data for the SC and OE SDTM domains, stored in {admiral} package and accessible by calling data(admiral_sc) or data(admiral_oe) (issues #11 and #13).
• Updated AE and QS test datasets in {admiral} to include ophthalmology-specific variables and records, such as laterality variables in AE and VFQ records in QS (issues #12 and #52).