unhandled options

A few options are not currently handled from easylist and easyprivacy:

- [ ] `popup` - Include pages opened in a new tab or window: https://github.com/brave/adblock-rust/issues/683
- [x] `generichide` - Used to prevent applying global element rules on a page (e.g. `@@||example.com^$generichide`)
- [x] `document` - Used to whitelist the page itself (e.g. `@@||example.com^$document`)
- [ ] `webrtc` - Include or exclude connections opened via RTCPeerConnection instances to ICE servers
- [ ] `elemhide` - Used to prevent element rules from applying on a page (e.g. `@@||example.com^$elemhide`)
- [ ] `genericblock` - Used to prevent applying global blocking rules on a page (e.g. `@@||example.com^$genericblock`)