Graph reference 3.0:

- enable easily-configurable language-dependent
  meta descriptions of graph objects.
- split `graph_objs_meta.json` output file
  into language folders (`./graph_objs/<lang>/`)
- split setup, meta-generating functions,
  meta shortcuts and run command into separate files (in `./scripts/`)
- replicate previous `graph_objs_mets.json` (yeah!) 
this is cool. i dig this solution! it would be sweet to have a test sweet that could ensure that we don't hard-code in this stuff in the future by accident. because that's definitely not something anyone is going to want to continuously check for.

i.e., would it make sense to reformat the text in a separate process?

```python
for piece_of_text in all_the_pieces:
    piece_of_text.format(**language_table_entry)
```

that way we can stick a test in between (before it's been formatted) to make sure we don't slip up!

(also, haven't looked at where that formatting happens, perhaps that's already the case)