xgx_annotate_status: Create a status (e.g. DRAFT) annotation layer
Description
xgx_annotate_status adds a status (e.g. DRAFT) annotation layer
to a plot.
The text of the annotation can be customized, the default is "DRAFT".
The color, location, size, fontface, transparency of the annotation can
also be customized.
Usage
xgx_annotate_status(status = "DRAFT", x = Inf, y = Inf,
color = "grey", hjust = 1.2, vjust = 1.2, fontsize = 7,
fontface = "bold", alpha = 0.5, ...)