fastapi.run should be able to take arguments from cli

[danilovmy]

right now i should add some parameters directly in code:

@app.command(help="Run a FastAPI application.")
def run(prod: bool = typer.Option(False)):
    ....
    if not prod:
        # args.append("--reload")
        args.append("--log-level debug")
        args.append("--host 0.0.0.0")
        args.append("--port 8000")
        args.append("--access-log") 
    ....

But it is really standard and user-friendly to do, for example:

fastapi run --host 0.0.0.0 --port 7070