Idea: Include files using `standard.include` in `package.json`

[danielbankhead]

What version of standard?
11.0.1

What operating system, Node.js, and npm version?
OS: macOS 10.11.6
Node: 8.11.3
npm: 6.2.0

What did you expect to happen?
A way to include files that were excluded from .gitignore.

What actually happened?
No way to include files from .gitignore

Details
Say you're working on a project that compiles to JavaScript (e.g. TypeScript) and you'd like those distributable files to be formatted in standard, but not committed in your git repo itself. Adding this feature would give a user the flexibility to include files ignored from .gitiginore and standard.ignore.

I'm interested in creating a PR in standard-engine for this feature if you think its a good idea.

[LinusU]

Say you're working on a project that compiles to JavaScript (e.g. TypeScript) and you'd like those distributable files to be formatted in standard, but not committed in your git repo itself.

I like this, have a few TypeScript projects myself and would love for them to be standard-style published 🚀

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[danielbankhead]

Hey @LinusU, I should be able to get to this PR sometime in December. Are you a part of the standard org and/or able to review the PR?

[LinusU]

I will be able to review ☺️

It would be nice to get some signals on what the other maintainers think of the idea, e.g. @feross, @Flet 😀

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.