feat(init): adds exception to not-to-dev-dep for type-only dependencies

[sverweij]

Description

• adds an exception to the not-to-dev-dep for type-only dependencies to ones in @types folders (which are pretty likely to be type only as well, even when not explicitly imported as such)
• does the same for dependency-cruiser's own configuration

Motivation and Context

Implements the second suggestion from #873

How Has This Been Tested?

• green ci
• manually against a TS repo

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• Documentation only change
• Refactor (non-breaking change which fixes an issue without changing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• 📖

  • My change doesn't require a documentation update, or ...
  • it does and I have updated it

• ⚖️

  • The contribution will be subject to The MIT license, and I'm OK with that.
  • The contribution is my own original work.
  • I am ok with the stuff in CONTRIBUTING.md.

[codeclimate]

Code Climate has analyzed commit a2b78a4 and detected 0 issues on this pull request.

View more on Code Climate.