Addition of a music player app

[reiespinosa1996 at nauta.cu]

Greetings.
In my humble opinion the best choice will be a lightweight GTK3 compatible music player like Pragha (it does a pretty decent job with openSUSE XFCE) or some other similar to Pragha. I also like to suggest: Xubuntu devs should think about including a tiny package with a trigger for apt install xubuntu-restricted-extras in a terminal and a icon displayed on the Music and Videos section of Whisker menu. In that way must of the codecs should be easily installed and Parole will work great.