Make credentials optional if using on local network

[oleggtro]

afaik it shoult be possible to use the bot with spotify webapi tokens -> it should be possible to implement oauth and offer the bot to more than one user without giving away login credentials

[oleggtro]

any comment on this? @codetheweb

[codetheweb]

librespot doesn't (and won't) support OAuth.

Making the credentials optional in the case of using it on your local network seems like a good feature to add though.

[codetheweb]

I'll keep this open for now and reword it slightly.

[oleggtro]

I think I may use this as one of my hacktober contribs