Expose locations.json

[EtienneLamoureux]

stantonsystem.xml is a treasure trove of positional locations, at least for the planetary bodies. Consider exposing it as a parsed json file.

Additionally, shops are related to their locations through their ID:

1. Given a shop, find its ID in ShopLayouts.xml
2. In layer0.xml, find which variable ID has a default value equal to that shop's id
3. Find that variable ID in stantonsystem.xml and check it's hierarchy

[richardthombs]

OMG, I just started looking at layer0.xml, my mind is blown already!

[richardthombs]

stantonsystem.xml is great, but I can't figure out how to link these back to real place names, any ideas?