add environment checking to issue template

The current issue template has this:

Please provide your exact Jest configuration and mention your Jest, node, yarn/npm version and operating system.

And yet many issues ignore this or format it differently, because it takes time to get all those versions.

I’d like to update the issue_template with envinfo so we can get all of this in one terminal command:

npx envinfo --system --binaries --npmPackages jest

  System:
    OS: macOS High Sierra 10.13
    CPU: x64 Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz
    Free Memory: 1.75 GB
    Total Memory: 16.00 GB
    Shell: /usr/local/bin/bash - 4.4.12
  Binaries:
    Node: 8.9.4
    Yarn: 1.3.2
    npm: 5.6.0
    Watchman: 4.9.0
  npmPackages:
    jest:
      wanted: ^22.2.1
      installed: 22.2.1

It can be configured however you like, even return markdown or json and copy directly to the clipboard.

This is already in react-native, CRA, expo, and styled-components, and I think it would be great here too!

[rickhanlonii]

A preset would be 🔥 we need to make it as easy as possible so people actually use it

[github-actions[bot]]

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