create_base_plot_cat: Create a categorical choropleth
In antaldaniel/satellitereport: SatelliteReport Helper Functions

Create a categorical choropleth

create_base_plot_cat(
  choropleth_data,
  color_palette,
  na_color,
  drop_levels,
  iceland,
  are_there_missings,
  unit_text
)

`choropleth_data`	An sf object with the categorical data in column `cat`.
`color_palette`	A named character vector with colors. If you use this with categorical variables, make sure that the color_palette has a value for each categories except for missing values, and it is named to the category name (factor level) as it is found in you `values_var`.
`na_color`	Defaults to `"grey93"`. This color will be used in the color palette for missing values, unless you have explicitly set one of the names of the palette to `"missing"`.
`drop_levels`	Weather to drop categorical levels on the choropleth if they are not present in the data. Defaults to `FALSE`.
`iceland`	A logical variable to show Iceland on the map.
`are_there_missings`	A logical variable if missing data is present.
`unit_text`	Defaults to `NULL`. The title caption of the color (fill) legend.