Level Overview fixed at origin

[Trainzack]

When loading into a level, the camera is always fixed at the origin. This looks terrible if the origin is below the map.

In srcpires, we could add level overview entities to maps to control where these starting camera positions and orientations are. These entities could also be enabled or disabled via map logic, so you can (for example) make the active overview be near the most contested areas.

[RoyAwesome]

I want to make a whole spectator system to solve this, where you get a bunch of cameras around the map and the game picks one where there is the most combat.