Deconstruction planner: coal rocks only

[macdjord]

In 1.17, every type of rock on Nauvis was a separate item in the deconstruction planner. If you wanted to deconstruct all rocks, you had to add each of half-a-dozen rock types to the planner separately. (Or use the trees-and-rocks only switch, but that only worked if you specifically wanted to remove trees and rocks, not if you wanted to remove just rocks, or remove trees, rocks, and cliffs.) Now in 2.0, there is only a single 'rock' item in the planner window, which matches all types of rock on Nauvis.

Now, for the most part, this is a good thing. I can't really think of any situation where I'd want to remove, say, large rocks while leaving small rocks alone. However, there is one exception: huge rocks, which are the only type of rock to give coal as well as stone when mined. In the early game, these are the best source of coal to fuel your factory, and it was really nice to be able to use the deconstruction planner to target them while ignoring all other rock types.

I thus propose the deconstruction planner have two entries for Nauvis rocks: one for all non-coal-bearing types, and another for all coal-bearing ones.