This function provide some metadata about the included Font Awesome assets
in the fontawesome package. The list that is returned has the following
components:
version: The released version number for the Font Awesome icons
icon_count: The total count of unique Font Awesome icons
icon_names: A vector of short names (e.g., "npm", "drum", etc.) for
all included icons
icon_names_full: A vector containing the full names (e.g., "fab fa-npm", "fas fa-drum", etc.) for all included icons
icon_names_fa(r|s|b): Vectors of short names within the regular ("r"),
solid ("s"), and brand ("b") groups
icon_names_full_fa(r|s|b): Vectors with the full names of icons within
the regular ("r"), solid ("s"), and brand ("b") groups