Switch fillet_knives over to universal Forge tag (#338)

* Use universal forge knives tag for compatibility

For example:
Farmer's Delight uses this tag for their cutting recipes

Would also allow knives from Farmer's Delight to be used in fillet recipes.

* Add old fillet_knife tag to forge:tools/knives

This covers every edge case, and allows Farmer's Delight (among other mods) recipes to be aware of Aquaculture's knives.

* Moves knives directly into tools/knives tag

* Delete fillet_knife.json

src/main/java/com/teammetallurgy/aquaculture/api/AquacultureAPI.java

@@ -35,7 +35,7 @@ public static RegistryObject<Item> registerFishMount(@Nonnull String name) {
     }
 
     public static class Tags {
-        public static final TagKey<Item> FILLET_KNIFE = tag("forge", "fillet_knife");
+        public static final TagKey<Item> FILLET_KNIFE = tag("forge", "forge:tools/knives");
         public static final TagKey<Item> FISHING_LINE = tag(Aquaculture.MOD_ID, "fishing_line");
         public static final TagKey<Item> BOBBER = tag(Aquaculture.MOD_ID, "bobber");
         public static final TagKey<Item> TACKLE_BOX = tag(Aquaculture.MOD_ID, "tackle_box");
@@ -56,4 +56,4 @@ public static TagKey<Biome> biomeTag(String modID, String name) {
         public static void init() {
         }
     }
-}
+}

src/main/resources/data/forge/tags/items/fillet_knife.json → src/main/resources/data/forge/tags/items/tools/knives.json

@@ -8,4 +8,4 @@
     "aquaculture:diamond_fillet_knife",
     "aquaculture:neptunium_fillet_knife"
   ]
-}
+}