Pyorderbook

Create a high-performance limit order book and matching engine in Python. I need the core functionality to handle order matching using a Rust backend via PyO3 for speed. The system should support creating orders (both bids and asks) with details like symbol, price, and quantity. Key features include matching incoming orders against the book, which should adhere to price-time priority. The matching process must return a `TradeBlotter` detailing all executed trades, including total cost and average price. Also, implement functionality to cancel existing orders and provide methods to inspect the book, such as getting a specific order or generating L2 snapshots for a given symbol.