Converted walls

Converted Walls are wall types normally created by biome spread. They can also be made using Solution sprayed with the Clentaminator, and on the they can also be crafted or purchased (with the exception of the natural Mushroom Wall). On the versions, the Clentaminator is the only way the player can make these walls. On versions where the Clentaminator is needed these walls furthermore drop nothing when destroyed (with a hammer or explosives), which technically makes them unobtainable items on those versions.