Added a new helper (panther_country_helpers) to contain code
relating to getting contextual information from country codes. Moved
the existing functions out out panther_base_helpers and expanded on
them. Also refactored the rogue state sign-in rule to use the new
helper.

OneLogin data model was checking the event type as an integer, but our
schema actually casts the event type as a string, so the data model never
mapped correctly. I've fixed this. Since I'm unsure if there's any likelihood of
the event type being an integer instead of a string, I've opted to manually cast
it to a string when comparing