Can we get some Sweeps in here.

[Ellatrix]

- Make housing instanced, and make it require GC seals / Missions progress to acquire rather than gil, wich each size requiring achieving further progress /more seals.
- Make neighborhoods an optional feature requiring a large gil sum. Want your instanced house to be transferred inside a neighborhood? 4M gil for a small, etc.

Spoilers: GC seals and gil are interchangeable. Also there's way too much gil in circulation right now they need more sinks.