More flexible choice of displayed algorithm names #31
Description
Currently, the folder name or archive filename determines the algorithm name displayed in the cocopp figures.
cocopp should allow the user to provide a mapping from the default name to a displayed name.
Our 2019/adapt-Nelder-Mead-scipy-2019_Varelas data set displays as adapt-Nel, see here, which seems kinda not optimal.
Caveat: if we change the display name via a default mapping, it may be difficult to find the data set via cocopp.archives.bbob.find (and hence when calling cocopp.main) for using it in a comparison, unless the archiving module searches in the mapped names too.