Release version 1.0.0

• Adds calc_assoc_metrics() to calculate association metrics between two variables.
• Adds calc_type_metrics() to calculate dispersion and frequency metrics for a variable.
• Adds create_data_dictionary() to create a data dictionary for a dataset.
• Adds find_outliers() to identify observations in a data frame that have outliers for a given variable.
• Adds get_gutenberg_data() to download a dataset from Project Gutenberg.
• Adds add_pkg_to_bib() to add a package to the bibliography.
• Adds write_*() functions to aid in publishing results to a variety of formats.
  • write_gg() writes a ggplot object to a file.
  • write_kbl() writes a knitr::kable object to a file.
  • write_obj() writes an R object to a file.
• Adds find_outliers() to identify observations in a data frame that has outliers for a given variable.