Add space to, swap Lastname,Firstname

[ohrenkino]

See also this discussion whether it really makes sense to swap at all:

First Name Last Name with any frailing words to Last Name, First Name and Trailing words

Didn't you participate in a thread that deals more or less with the problem of lists with a slash in them? And to be honest: the swapping of names ... does it really make sense? There are so many exceptions that the swapped names in the end do not ease the access to the artist. Any decent player will search for artist name parts so it does not matter which structure the name has. In which field do you want to swap the names? I hope, only in the ~SORT fields as otherwise it will become a str…

and if it is really necessary "because of reasons", consider the use of the ~SORT fields (ARTISTSORT, TITLESORT etc.).