Fix @track decorator when used with parallelize()

[falkoschindler]

This PR replaces the stack list with a dictionary, mapping a unique ID to function names. After running the function, we don't pop the last function name, but delete the item with the respective ID from the dictionary. Since Python dictionaries preserve their item's order, we can simply display the current state by joining all dictionary values.

Has been successfully tested with the code snippet from #147 (comment).

[NiklasNeugebauer]

Isn't the UI confusing then?

The following would write: run → long → short → short
Even though the last short was called by long

from nicegui import ui
import rosys

@rosys.analysis.track
async def short():
    await rosys.sleep(2.0)

@rosys.analysis.track
async def long():
    await short()
    await rosys.sleep(2.0)

@rosys.analysis.track
async def run() -> None:
    await rosys.automation.parallelize(long(), short())

automator = rosys.automation.Automator(None, default_automation=run)

rosys.automation.automation_controls(automator)
rosys.analysis.track.ui()

ui.run()

[falkoschindler]

Yes, the UI is far from optimal in this case. But that's how it has already been before. At least all items are correctly removed now, fixing issue #147.
We'll create a separate feature request for improving the UI for parallel coroutines.

[codingpaula]

Feature Request: #151