[Magiclysm] Signpost a way(denarius) to get to the forge of wonders

[RenechCDDA]

Summary

Content "Signpost a way(denarius) to get to the forge of wonders"

Purpose of change

The forge of wonders was made globally unique, but there's still no way to reliably find it.

Describe the solution

Thanks to Guardian's work to expose this the reveal and reveal route functions to EOCs, we can just write an EOC for it.

Describe alternatives you've considered

My original iteration had it firing on game start with this message:
{ "u_message": "When the troubles began, you felt something… new. You're not sure what it is, but you're sure you know how to get there. Somehow.", "type": "mixed" },

Testing

Works properly when used on the roads, gives magical prose hints when not on the roads as desired.

Additional context

Will not function properly without #75836 due to oter id matching (there is no spawned terrain with the id of road, it always spawns with a connection suffix)