Memory

[DavidValin]

• Add a tool module to handle tool calls
• Implement basic knowledge graph memory with vector storage
• Implement a basic StoreMemoryTool
• Implement a basic RememberTool
• Send available tools to LLM
• Enable tool_calls only if model allows it
• Process memory tool calls from llm (validate schema and handle)
• Provide memory context from memory when submitting prompt
• Full test functionality