v0.2.0

New experiments

• Tool Calling - refactored ChatMessage dataclass, Tool dataclass, refactored OpenAIChatGenerator, ToolInvoker component
• Memory Components - ChatMessageWriter, ChatMessageRetriever, InMemoryChatMessageStore
• Document Splitting & Retrieval Techniques - Auto-Merging Retriever, HierarchicalDocumentSplitter
• Metadata extraction with LLM - LLMetadataExtractor

New Contributors

• @dfokina made their first contribution in #81

Full Changelog: v0.1.1...v0.2.0