[TASK] Remove wrong line endings in SyntaxHighlightingService

Change-Id: I606ab08112270f2e526d685920ac651473a1fef5
Reviewed-on: https://review.typo3.org/31384
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
[TASK] Remove dependencies in composer.json

This is done due to the fact that templavoila
will never be the root package in any case and
therefore will never install typo3 as a package
into vendor/.

Also scrutinizr cannot resolve the dependency and
therefore fails executing code quality checks.

Releases: 2.0.0
Change-Id: Ic82c6f77a77d17e31ba6f0edc68355eb64068069
Reviewed-on: https://review.typo3.org/31388
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
[TASK] Mark all methods public that didn't define accessibility

Releases: 2.0.0
Change-Id: Ib74267ed5eb67aa8316d5c60de0ffd8a75eb1602