Add Toggle options about greatpug-public

[owlboy]

Just a note, seat toggles are partially in place. More seat toggles will be added in future updates.

Mirrors will continue to be toggled when you stand in front of them.

No more than one light is ever on at a time, and all are located in places with fewer drawcalls, and details than the main bar area.

[Svelsien]

Concerning the mirror toggle.
When hanging out with some people in the Pug, they have a tendency to move toward the mirror and I usually can't stay around it because i start to lag so i have to move away until it disable itself which is fairly annoying.
Having a proper toggle would be a good QOL change.

[owlboy]

Toggles for seats in Night View have been added.

A toggle for the Main Bar mirror has been added. Details in #28.

[owlboy]

A toggle to turn on a real-time light for avatars has been added. For now, the light only comes on over the main bar. This is experimental and is likely to change in behavior.

This toggle will likely always be opt-in.

[owlboy]

A toggle for the house music has been added. See also: #64