Nodemon: Implement support dot env file

[RobinCK]

• nodemon -v:
• node -v:
• Operating system/terminal environment:
• Command you ran:

Expected behaviour

add setting env_file in config file (nodemon.json)

{
  "ignore": [ ],
  "verbose": false,
  "watch": [  ],
  "delay": 2500,
  "env": {},
  "env_file": "",
  "ext": "js json ts"
}

Thanks

[remy]

Env loading should be separate, and won't be part of nodemon.

I use @remy/envy. Pick your own poison.