Progress bar for simulation with period and/or remaining time

[gdementen]

No description provided.

[gdementen]

done in 839f6f7

[gdementen]

The rate of update is such that it is barely usable on large models/datasets, where it is needed the most. I will have a second try at the threaded version.

[gdementen]

Here are a few related facts salvaged from an old TODO list. I put them here for posterity because this is the most likely place I will look at.

• eclipse/pydev console suck (\b prints a special char, \r as a new line)
• notepad++ (exec) console: (\b sort of works -- but it eats the last \n --, \r is ignored)
• dos console supports \b and \r

This all means I cannot do a status window with a progress bar and the current period/process and estimated time left. I will have to go for only a progress bar or no bar at all and print progress (percent + estimated time left) periodically on a new line.