Automatic text formatting for ggopenair
quick_text.Rdquick_text() is routine formatting lookup table which automatically
prepares common pollutant names and units for parsing using
ggplot2::label_parsed() or similar. It is automatically called by several
ggopenair functions. Unlike openair::quickText(), quick_text()
returns a character vector, which means its output can be stored in a data
frame or tibble::tibble()