inim should read configs read by nim (eg nim.cfg) but doesn't
test.nim:
```nim
import foo/util
```
```
nim c -o:app -r test.nim
#works, because I set the path in nim.cfg
```

inim
```
>>> import foo/util
Error: cannot open file: foo/util
  import foo/util
             ^
```

Also, it shouldn't duplicate the logic (which can change over time and be complex) but call the logic used by `nim`.