Have an option to leave concrete wall recipes alone

[TheiAndy]

I installed this mod after I had put many hours into a space exploration game and I had multiple wall building factories set up (including the spiked walls) and this mod changed the recipes for the walls. I really liked the new wooden and concrete floors and the new lights, but I really didn't want to go back through and change my wall factories to the new recipes (they are quite a bit more complicated). I think it would be a big help to have an option to leave concrete wall recipes alone (even if it means no new concrete walls), or detect if space exploration is installed and use those recipes instead. Not a major issue for most but I didn't want to leave it installed with those new recipes. Thanks for making a great mod!