✨ add support for V2 crop and split file operations

[sebastianMindee]

Description

• ✨ add support for crop and split file operations
• ✨ add support for generic adapters in ImageExtractor and PdfExtractor
• ✨ add ability to set quality during ImageExtractor save and inputsource conversion operations
• ♻️ move common logic of extractors to main Extractor namespace
• 🐛 fix PdfExtractor improperly loading some files
• 🐛 fix generated file names trying to target folders when trying to save to specific files

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Requires a change to the official Guide documentation.