make_icon_adders: Create the icons for a map
In ReseauBiodiversiteQuebec/mapselector: Map selector module for Shiny

Take a site dataframe, select the icons that should go on it, and configure these with options. The most important is to define what value should be returned by a click.

make_icon_adders(
  site_info_sf,
  site_icons = make_site_icons(),
  habitat_col = "type",
  site_id_col = "site_code"
)

`site_info_sf`	dataset with site information. should be of type sf and have a column points in sf format
`habitat_col`	column name that holds the habitat type. defaults to "type"
`site_id_col`	column name that holds the value that gets returned when clicked. defaults to "site_code