Manager: Ground work for the new fractal

[Linkaaaaa]

TODO

• [x] Fractal category "Lonely Tower"
• [ ] Encounter name
• [ ] Encounter ID
• [ ] Encounter icon

[Sejsel]

You'll also want to add it to EncounterIdentifier, both to IdentifyPotentialEncounters and IdentifyEncounter (there is a a test checking that, which is why the check failed)

[Linkaaaaa]

Yes I will when we get to know the correct ID