Add missing engine feature: unbroken tool craft

MISSING_ENGINE_FEATURES.md

@@ -37,5 +37,8 @@ For these features, a workaround (or hack ;-)) by using Lua is theoretically pos
 - Set damage frequency of `damage_per_second`. In Minecraft many things damage players every half-second rather than every second
 - Possible to damage players directly when they are with the head inside. This allows to add Minecraft-like suffocation
 
+#### Crafting
+- Require tools to be intact in crafting
+
 #### Nice-to-haye
 - Utility function to rotate pillar-like nodes, requiring only 3 possible orientations (X, Y, Z). Basically this is `minetest.rotate_node` but with less orientations; the purpur pillar would mess up if a mirrored rotation would be possible. This is already implemented in MCL2, See `mcl_util` for more infos