Moptipy

We added the first draft of the [OrderedChoices](https://thomasweise.github.io/moptipy/moptipy.spaces.html#module-moptipy.spaces.ordered_choices) space, corresponding [tests](https://thomasweise.github.io/moptipy/moptipy.tests.html#module-moptipy.tests.on_ordered_choices), and a [nullary search operator](https://thomasweise.github.io/moptipy/moptipy.operators.ordered_choices.html#module-moptipy.operators.ordered_choices.op0_choose_and_shuffle) for it.

added algorithm_namer and instance_namer to ert plot

ert plots now also support algorithm and instance grouping

- Added Data Sorting Options to ECDF Plots
- other minor improvements

More Tests and Improved [NSGA-II Implementation](https://thomasweise.github.io/moptipy/moptipy.algorithms.mo.html#module-moptipy.algorithms.mo.nsga2).

Adaptation to MatPlotLib 3.7.0 and More Tests