Added worldgen catalog model

- Added the platform-neutral worldgen catalog records, index and atomic JSON store
- Added the mod ingest request, report, item and tier types

core/src/test/java/art/arcane/iris/pack/ingest/catalog/WorldgenCatalogStoreTest.java

@@ -0,0 +1,83 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2022 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+
+package art.arcane.iris.pack.ingest.catalog;
+
+import com.google.gson.JsonObject;
+import com.google.gson.JsonPrimitive;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class WorldgenCatalogStoreTest {
+    @Rule
+    public TemporaryFolder folder = new TemporaryFolder();
+
+    @Test
+    public void writeThenReadPreservesEveryRecord() throws IOException {
+        JsonObject config = new JsonObject();
+        config.add("size", new JsonPrimitive(9));
+        WorldgenCatalog catalog = new WorldgenCatalog(
+                WorldgenCatalog.FORMAT,
+                "26.3",
+                "neoforge",
+                1234L,
+                "abc",
+                List.of(new CatalogNamespace("examplemod", "Example Mod", "1.0.0")),
+                List.of(new CatalogBiome("examplemod:glade", 0.7F, 0.8F, true, List.of("minecraft:is_overworld"),
+                        List.of(List.of(), List.of("examplemod:ore_glimmer")),
+                        List.of(new CatalogSpawn("creature", "minecraft:sheep", 12, 2, 4)), new JsonObject())),
+                List.of(new CatalogPlacedFeature("examplemod:ore_glimmer", "examplemod:ore_glimmer", "minecraft:ore", config, null)),
+                List.of(new CatalogStructure("examplemod:tower", "minecraft:jigsaw", "surface_structures", "none",
+                        "examplemod:has_tower", List.of("examplemod:glade"), List.of("examplemod:towers"))),
+                List.of(new CatalogDimensionType("examplemod:sky", 0, 256, 256, new JsonObject())),
+                List.of(new CatalogLevelStem("examplemod:sky", "examplemod:sky", "minecraft:noise", "minecraft:multi_noise", null)));
+        Path file = folder.getRoot().toPath().resolve("nested").resolve(WorldgenCatalogStore.FILE_NAME);
+
+        WorldgenCatalogStore.write(file, catalog);
+        WorldgenCatalog read = WorldgenCatalogStore.read(file);
+
+        assertEquals(catalog, read);
+        assertTrue(Files.list(file.getParent()).allMatch(path -> path.equals(file)));
+    }
+
+    @Test
+    public void indexResolvesNamespacesAndFeatureOwners() {
+        WorldgenCatalog catalog = new WorldgenCatalog(WorldgenCatalog.FORMAT, "26.3", "fabric", 0L, "",
+                List.of(),
+                List.of(new CatalogBiome("examplemod:glade", 0.7F, 0.8F, true, List.of(), List.of(List.of("examplemod:flowers")), List.of(), null),
+                        new CatalogBiome("minecraft:forest", 0.7F, 0.8F, true, List.of(), List.of(List.of("examplemod:flowers")), List.of(), null),
+                        new CatalogBiome("minecraft:desert", 2.0F, 0.0F, false, List.of(), List.of(), List.of(), null)),
+                List.of(), List.of(), List.of(), List.of());
+        WorldgenCatalogIndex index = WorldgenCatalogIndex.of(catalog);
+
+        assertEquals(1, index.biomesIn("examplemod").size());
+        assertEquals(2, index.biomesDeclaring("examplemod:flowers").size());
+        assertEquals("minecraft", WorldgenCatalogIndex.namespaceOf("plains"));
+        assertTrue(index.biome("minecraft:desert").isPresent());
+    }
+}