tidypolars 0.2.0

tidypolars requires polars >= 0.9.0.

New features

• Rename pl_fetch() to fetch().

• New functions supported: describe(), sink_csv(), slice_sample().

• New argument fill in pl_complete().

• Support stringr::str_to_title() and tools::toTitleCase().

• Support stringr::fixed() to use literal strings.

• Support replacements with captured groups like \\1 in stringr::str_replace()
  and stringr::str_replace_all().

Bug fixes

• sink_parquet() didn't use the user inputs (apart from the path).

Misc

• Clearer error message when an expression contains <pkg>::. This is not
  supported for now but could potentially be implemented later.

• pl_colnames() is no longer exported.