Added Synthetic Tool Function Call Tool

[ayomaska18]

• Added synthetic tool class
• Added unit testing for the synthetic tool class
• Added integration testing for the synthetic tool class

[ayomaska18]

The integration test results are shown above. The llm_input_node calls the weather synthetic tool, and executes it in the function_call_node, and the results are then summarized by the llm_output_node

[ayomaska18]

• Added synthetic tool in function call doc

[ayomaska18]

• modified pyproject.toml Graphite versions to 0.0.32