Progress update information for snowfall

[ltdeck]

Given that snowfall simulations may take some time to complete the simulation, it would be helpful to know the current progress of the simulation. For example, one may add the functionality that snowfall provides the number of completely simulated repetitions in live.

[bizzinho]

Potentially tricky with async. Need to Google.

[ltdeck]

May be even more useful for version 1.1, given that the complexity of the pallet simulations goes far beyond even large-scale shelves.

[bizzinho]

I added it to the new 3D model project, even though I remain unsure as to how easy this is to implement.

[bizzinho]

Check tqdm and pqdm.