ui: sunnypilot menu refactor (commaai#242)

* ui: `SPOptionControl`

* This works

* only need to initialize

* Use QButtonGroup

* Add method to update specific labels

* Always init label with value

* add method to update external methods

* Update in another PR

* Unnecessary

* construct std map with defined range

* Test that it works

* In separate PR

* change var

* refreshLabels() instead

* Revert "refreshLabels() instead"

This reverts commit ceed9935cf48c7db974e45ab5ab496a7bc3f9f26.

* allow individual `refresh` classes

* now we can do it in another PR!

* General: OnroadScreenOff

* General: OnroadScreenOffBrightness

* General: BrightnessControl

* Controls: CameraOffset

* Controls: PathOffset

* Controls: AutoLaneChangeTimer

* Controls: GapAdjustCruiseMode

* Controls: TorqueFriction

* Controls: TorqueMaxLatAccel

* Controls: SpeedLimitOffsetType

* Controls: SpeedLimitValueOffset

* General: MaxTimeOffroad

* Visuals: DevUiInfo

* Visuals: ChevronInfo

* unused

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