Make steam geyser overlay open for all relevant buildings.

[Wicloz]

Currently, placing blueprint for a building that only works on steam geysers does not show the fancy overlay you get for the geothermal power plant.

Since I have no clue how to mod RimWorld this way, could you change line 127 in the relevant file such that it matches any ThingDef with a PlaceWorker_OnSteamGeyser placeworker? This would support any steam geyser building automatically.

In my case I was interested in the Standalone Hot Spring mod.