grafica_pie: Pie Plot
In danielrs98/banxiplot: Helps to graph with the Banxico format

The function "grafica_pie" create a Pie Plot

grafica_pie(
  df,
  y_axis,
  fill_c,
  show_legend = T,
  etiquetas_c,
  i,
  legend_title = "",
  titulo,
  subtitulo
)

`df`	Default dataset to use for plot. If not already a data.frame, will be converted to one by fortify(). If not specified, must be supplied in each layer added to the plot.
`y_axis`	variable to be plotted
`fill_c`	color fill
`show_legend`	shows the plotted data
`etiquetas_c`	color of the data
`i`	number of partitions of the pie
`legend_title`	Legend title to graph, as character
`titulo`	Title to graph, as character
`subtitulo`	Subtitle to graph, as character