GeomTimeline_label: ggproto for custom geom
In Yailama/Capstone-project: Easy preparation and plot of NOAA hurricane data

It is modification of previous geom_timeline that can add captions to hurricanes plotted by date occured. Captions can be applyed to all observation, or to first n observations, having maximum value of specified metric (for example, first 5 with the highest magnitude level)

1	GeomTimeline_label

An object of class GeomTimeline_label (inherits from Geom, ggproto) of length 7.

## Not run:   ggplot2::layer(
   geom = GeomTimeline, mapping = mapping,
   data = data, stat = stat, position = position,
   show.legend = show.legend, inherit.aes = inherit.aes,
   params = list(na.rm = na.rm, ...))
## End(Not run)