Mostly a maintenance update
Removed tcltk, rlist dependencies (holdovers from older code)
Streamlined some things under the hood to make post-processing more efficient in eloratingopt & eloratingfixed
EloOrdinal column in output now stored as an integer object for small space saving.
Added a vignette to demonstrate usage of the package, see here.
Added cleaning step to avoid error when trying to use tibbles imported with readr::read_csv()
Added additional informative errors if input data are problematic
Fixed small bug related to converting character dates to Date class
Incorporated github actions for CI checks, pkgdown build
eloratingfixed outputNEWS.md file to track changes to the package.