Speed lines

# Description:
Speed Lines, or space-dust-streaks, done as an artificial reality effect by @Luomu.
For easy of use and disabling it since it might not be to everyone's taste I added an entry to the settings menu next to the nav tunnels to disable it but it's currently set to on by default.

# New Translation String:
I've added a new string that needs translating for the settings menu.
As well as adding that option to the settings menu and hooking it up.

# Notes:
Shiny