Skylights Don't Need Bridges

Dubs Skylights have a Light terrain affordance requirement. This means that if they're built over terrain like water or mud, a bridge is required. As of at least 1.5, this isn't necessary, but the mod hasn't adapted.

I feel this is an oversight since they're built into the roof, so this patch removes the terrain affordance from skylights, so they no longer need to be built over bridges.

Or, the technical version: This mod gives skylights a null terrain affordance.

Mod compatibility

I'm patching the base skylight def in this mod, so anything that inherits it (like the new sizes from the Dubs Skylight Addon mod) will also benefit from this patch.

Note

I've had this open as a pull request in the main mod for a few months; I was hoping it would get merged in, but the mod was updated to 1.6 without accepting it, so I suppose a separate patch mod is necessary. Should my pull request ever be accepted, I will unlist this mod.