StevenMMortimer / rdfp

Features

• dfp_report_url_to_dataframe() now returns a tbl_df object for better
  printing and casted data types
• Simplify dfp_select() so that it automatically uses dfp_select_parse()
  to format the result into a tbl_df
• Add dfp_date_as_list() that will convert a date or datetime representation
  in R to the required list format for submission to DFP
• Add addtl_scopes arugment to dfp_auth() so that users can create token that
  can be used with other R packages to connect to other Google services
• Add examples to functions so that the inline documentation
  gives a better idea of how to make it work in R