Allow import/order to accept a glob/regex

## Why

It should be possible to sort the imports based on their needs.

For example:
I want to have my meteor imports after my node imports but before the rest.

## Proposal

> .eslintrc.js
```js
module.exports = {
rules: {
'import/order': ['error', {
groups: [
'builtin',
'^meteor/.+$'
]
}]
}
}
```

Thoughts?

Start by examining the import/order rule and how its existing groups configuration determines import placement. Review the proposal and comment discussion for the intended glob or regex semantics; done means custom patterns can place meteor imports after node imports and before the remaining imports, with coverage for that ordering.

Written by the indexing model from the issue text.