It should be possible to extract static variables from classes in a single line

It should be possible to write `hero.belongings` and have that actually resolve to hero.belongings (obviously without me hardcoding belongings lol)

Currently you need to do:
```
@belongings use hero belongings
@armor use @belongings armor
use kingscrown upgradearmor hero armor %1
```

it would be better if you could just write
```
use kingscrown upgradearmor hero hero.belongings.armor %1
```