Add data to Billboard chart
Arguments
- bb
- A - billboard- htmlwidgetobject.
- ...
- Arguments defined in https://naver.github.io/billboard.js/demo/. 
Note
This function can be used with billboarderProxy in shiny application.
Examples
billboarder() %>%
 bb_barchart(data = table(mtcars$cyl)) %>%
 bb_data(names = list(Freq = "Number of cylinders"), labels = TRUE)