ExtendedLegacyOfRome: Fix duchy lists for "Lost Roman Provinces" to match the updated map, and to be more historically acurate.
ExtendedLegacyOfRome: Use the same duchy list for the imperial_reconquest CB as for the "Roman Borders Restored" event.
Hellenic: Tune AI decision making when reinstating the old roman state religion.
Hellenic: Add automatic AI conversion to hellenic_pagan religion

This replaces the non-working "Demand religious conversion" diplomatic action.
Hellenic: Add the Vestales as minor titles
Hellenic: Add wip Vestalis trait icons.

Looks a bit out-of-place, but is the best I can do with my severely limited artistic talents.