Support store_provenance in normal task

[superstar54]

There is no provenance stored for a normal task. If the user wants to store the provenance, they need to switch to calcfunction or PythonJob. But the downsides are

• calcfunction needs AiiDA nodes as input and output
• PythonJob requires the module to be importable in the working computer.

Is it possible to combine the upsides of the above tasks: 1) can be run locally; 2) automatically serialize inputs and outputs. Maybe we could add store_provenance argument for a normal task, e.g.,

@task()
def add(x, y):
    return x + y

wg = WorkGraph()
add_task = wg.add_task(add, name="add1", x=1, y=2,
                       store_provenance=True,)
wg.run()