Allow randomizing view mode and "scalability" visual settings to increase visual variation

We should enable wide variation in camera output to encourage [domain randomization](https://arxiv.org/abs/1703.06907) within agents trained on camera data. Like start position and other [domain-randomization features](https://github.com/deepdrive/deepdrive-sim/labels/domain-randomization), this should be controlled by a random seed that can be passed via Python.

[Unreal Scalability settings](https://docs.unrealengine.com/en-us/Engine/Performance/Scalability/ScalabilityReference)

[Unreal Viewmodes](https://docs.unrealengine.com/en-us/Engine/UI/LevelEditor/Viewports/ViewModes)

Examples