AW4 Building Vision

[FruityGumGuiltyFruit]

Is your feature request related to a problem? Please describe.
I noticed that CoW didn't have an option for buildings to have vision like in AW4, so I tried to make a game rule for it. I knew how to increase the vision of buildings, but didn't know how to code custom game rules, so this is all I have made.

Describe the solution you'd like
Please add the files as a vanilla game rule.
buildingvision.zip

Describe alternatives you've considered

Additional context

It would go somewhere here.

[Robosturm]

Some notes since all your work is useless. :(

1. Don't try to add features without creating an issue first and waiting what I think about it.
   In your case I changed the feature so that you can set the vision range buildings grant instead of having a fixed toggle option
2. I'm never excepting any code changes via zip files and only via pull request
3. In this case adding the rule is the most important part so all your changes aren't making it either.

So if you plan to add something in the future. Please make sure to have a discussion with me before hand.
So your work makes it into the game.