Michael Schimmel
2579e2b1fd
Introduce a new field to `Environment` to store a list of pipeline generator functions. Add a `run_pipeline` method to `Environment` that iterates through and executes all registered generators until they are exhausted. Implement `ObservableStream` trait for `RootStream` and `PipeStream`. Add a `StreamNode` wrapper for `ObservableStream` to be used as a script object. Register `create-random-ohlc` as a native function that creates a `RootStream`, sets up a OHLC record layout, and registers a stateful generator closure in the environment's pipeline generators.