add: jsonlines plugin

[petlack]

Awesome Contribution Checklist:

• [x] I have read, and re-read the Contributing Guidelines
• [x] I have searched to ensure the suggested item doesn't exist on this list
• [x] This PR contains only one item

Please Provide a Link A Repository for Your Addition

https://github.com/petlack/rollup-plugin-jsonlines

Please Describe Your Addition

Import .jsonl (JSON Lines) files as JSON arrays.

fruits.jsonl

{ "type": "apples", "count": 7 }
{ "type": "pears", "count": 4 }
{ "type": "bananas", "count": 5 }

index.js

import fruits from './fruits.jsonl';

console.log(fruits);

log

[
  { "type": "apples", "count": 7 },
  { "type": "pears", "count": 4 },
  { "type": "bananas", "count": 5 }
]