Restructure 50/60/70/80 Roulette before Dawntrail

[PortalScience]

• Move The Aetherochemical Research Facility to Main Scenario Roulette

This duty, with all cutscenes watched, takes approximately as long as The Praetorium. It belongs in MSQ roulette, not with the 60 dungeons

I also think the MSQ roulette should consider expanding. With the recent changes to Praetorium/Castrum, they are still longer dungeons, but they now match the X.0 story dungeon that EVERY expansion has. ARF, Ala Mhigo, and Amaurot all are longer dungeons, with rougher mechanics/sync, that are harder to queue into for new people going through the plot. To keep sprout player experience flowing, having these dungeons move to the higher reward roulette would help with queues.