Censor Beep

Implement the sounds under sounds/mod and when moderation and censor_slurs is enabled with a possible skip flag under it then you can use voices.

```yaml
moderation:
   enabled: true
   censor_slurs: 
         enabled: true
         skip: false
```

Behind the scenes I'll choose the audio. If there is no folder I need to set the skip flag to true. Also, skip is probably not descriptive enough.