auto skip due to media list

[pironic]

This will allow us to have several types of lists that can be added to and auto-skipped from.

Each list will have a permission that users will be allowed to play songs from regardless of their occurance on said list.

format will be something like

"nsfw" : {
    "permission" : "MANAGER"
},
"op" : {
    "permission" : "RESIDENTDJ"
},
"troll" : {
    "permission" : "COHOST"
},
"broken" : {
    "permission" : null
}