dem add/ensure doesn't create anything in vendor/

[jslick]

Perhaps I am misunderstanding dem, but it seems dem add should be files in vendor? But I am not seeing this happening. Thus far, only dem alias does anything to vendor/ .

Using dem 0.9.9:

1. dem init
   sucessfully initialized dem.json
2. jq . dem.json

{
  "modules": [],
  "aliases": {}
}

3. dem add https://deno.land/x/dejs@0.9.3
   successfully added new module: https://deno.land/x/dejs, version: 0.9.3
4. jq .modules dem.json

[
  {
    "protocol": "https",
    "path": "deno.land/x/dejs",
    "version": "0.9.3",
    "files": []
  }
]

But, there is no vendor directory (if I create vendor/ beforehand, nothing is placed inside of it).