Add more edit commands

Once I get some time and I have a better sense of how we should input lists of values to the commands, we should add the following:

* `skylight-by-ratio`
* `skylight-by-ratio-gridded`
* `louvers-by-count`
* `louvers-by-distance`
* `extruded-border`
* `move-model`
* `rotate-model`
* `scale-model`
* `reflect-model`
* `merge-models`
* `generate-stories`