[Feature Request] LastFm scrobbling

### Is your feature request related to a problem? Please describe.

I have a website for my minecraft server, and I use this discord bot as a music bot for the discord server, I would like to use the lastfm API to display the last played song by the bot.

### What is your ideal solution to the problem?

add the lastfm api

### How would this feature be used?

website api pull
trace time and date of played song

### Additional Info

the "api" addition isnt the same as what i want, its optional, not a must add it before running

### Checklist

- [X] I have checked [the documentation](https://jmusicbot.com/) to make sure this feature doesn't already exist
- [X] I have searched for [similar feature requests](https://github.com/jagrosh/MusicBot/labels/enhancement)
- [x] I have confirmed that my requests is **not** on the [list of things that will not be added](https://jmusicbot.com/things-that-wont-be-added)
- [X] I am running the latest version of the bot: 

No files, tests, or entry points are named. First clarify the Last.fm authentication, scrobbling behavior, and website-facing API requirements; the feature is done when the bot records played-song date and time and makes that information available for the requested website use.

Written by the indexing model from the issue text.