output of get_maxlikeindex and get_minlikeindex are different

[lwq-star]

I found that the output of the get_maxlikeindex and get_minlikeindex functions in .../spotpy/src/spotpy/analyser.py is different. One is an array, and the other is a 'numpy.float64' object. Can the two functions be printed as a 'numpy.float64' object in a future release?

[lwq-star]

Some drawing functions such as plot_bestmodelrun, plot_posterior ... only support maxlikeindex, can these problems be improved in future versions?