Free-form text field users for exracting dependencies from package.json content (full or partial), or other sources of dependencies

[broofa]

In addition to the existing options for specifying packages / dependencies (q param names, file upload, q param urls), it would be convenient to have a way generating graphs from ...

• package.json contents (copy/pasted) paste in package #97
• package.json dependencies-like fragments (e.g. copy/pasting just the inner or outer portions of dependencies)
• package-lock.json or yarn.lock ala Support package-lock.json file #148 (file sizes make these problematic?)
• top-of-file import statements

Gist with examples of the above

'Not really sure what this looks like in the UI. I'm inclined to just keep it simple (e.g. <textarea>) as opposed to diving down the rabbit-hole of rich text editors.