Add enum mapping from names to IDs

This auxiliary enum provides a way to address the continents using
readable names instead of cryptic numbers. While this should not
matter for be bot itself, it might for the human programming it.
Add enum mapping from names to IDs to regions

This auxiliary enum provides a way to address the regions using
readable names instead of cryptic numbers. While this should not
matter for be bot itself, it might for the human programming it.