Avoid changing newlines

[nulls]

What's done:

• set editorConfigDefaults with end_of_line based on current system

It closes #1828

[codecov[bot]]

Codecov Report

Attention: 14 lines in your changes are missing coverage. Please review.

Comparison is base (fca7f53) 78.27% compared to head (e855cd1) 78.15%.

Files	Patch %	Lines
...urtool/diktat/ktlint/DiktatProcessorFactoryImpl.kt	0.00%	14 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1830 +/- ## ============================================ - Coverage 78.27% 78.15% -0.12% Complexity 2432 2432 ============================================ Files 131 131 Lines 8603 8616 +13 Branches 2173 2174 +1 ============================================ Hits 6734 6734 - Misses 903 916 +13 Partials 966 966 ```

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