feat: Add methods that tell which columns would be affected by a transformer#304

PhilipGutberlet merged 16 commits intomainSafe-DS/Library:mainfrom

190-columns-that-are-addedchangedremoved-by-a-tabletransformerSafe-DS/Library:190-columns-that-are-addedchangedremoved-by-a-tabletransformerCopy head branch name to clipboard