[ Feature Request ] Implement getters for Flow.Fog

[Stranger1992]

Is your feature request related to a problem? Please describe.

Currently, you can only SET the fog colour and distance but not get it.

Describe the solution you'd like

In order to implement changing fog properties so that they are carried over when the game saves and loads: I need the Lua API to be extended to allow for this.

Describe alternatives you've considered

There are mentions of getting the fog properties in the code but its not finished as far as I can tell.

Additional context

n/a