Feature Request: Whitelist mode instead of Blacklist

[MGgoose]

Feature request of a whitelist mode where the user adds a list of websites where the extension is enabled.
Currently only a blacklist mode of websites where the extension is disabled.
Allow mode to be toggle-able in the settings.

[SoPat712]

I do believe I have this on my fork now!

https://github.com/SoPat712/Speeder

I'm happily accepting any bug/feature requests you have, so let me know if you end up trying it out.