Add stonecutting recipes for regular deepslate

kubejs/server_scripts/recipes/essentials/deepslate_stonecutting.js

@@ -0,0 +1,11 @@
+// priority: 0
+
+onEvent("recipes", event => {
+  // For every stonecutting recipe that uses cobbled deepslate,
+  // add a recipe that can use regular deepslate as well.
+  event.forEachRecipe({ input: "minecraft:cobbled_deepslate",
+                        type: "minecraft:stonecutting" }, recipe => {
+    let output = recipe.outputItems[0].getId();
+    event.stonecutting(output, "minecraft:deepslate");
+  });
+});