invitroTKstats 0.0.13

• Initial CRAN submission
• Update documentation
• Standardization of column names across all assays, function arguments, and replicate types
• Creation of utility functions and data objects for nomenclature standardization
• Bug-fixes for in vitro toxicokinetic parameter estimates
• Addition of example datasets and vignettes
• Removal of automatic sigfig rounding for in R session output objects
• Citation update to BibTeX formatting
• Removal of unneccessary functions
• Addition of a data export argument