feature(svelte): adds support for processing svelte templates with css pre-processors

[sverweij]

Description

• when pre-processing svelte templates ignore style tags with an attribute that indicates processing is necessary.

Published on npmjs as beta: dependency-cruiser-12.3.0-beta-1 (sha-sum: 9a483d3a723361375cf375097635d69f21c3cafe).

Motivation and Context

• fixes Issue: Dependency cruiser does not work with style preprocessors in Svelte #713
• also see the comment accompanying the code

How Has This Been Tested?

• green ci
• automated non-regression tests
• additional unit test
• also see the repro 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.