Generate Legacy-style libraries in Ages (#76)

src/main/resources/data/rivencraft/loot_table/chests/mystcraft_library.json

@@ -0,0 +1,26 @@
+{
+  "type": "minecraft:chest",
+  "pools": [
+    {
+      "rolls": { "type": "minecraft:uniform", "min": 4, "max": 8 },
+      "entries": [
+        { "type": "minecraft:item", "name": "minecraft:paper", "weight": 10,
+          "functions": [{ "function": "minecraft:set_count", "count": { "type": "minecraft:uniform", "min": 2, "max": 8 } }] },
+        { "type": "minecraft:item", "name": "minecraft:leather", "weight": 5,
+          "functions": [{ "function": "minecraft:set_count", "count": { "type": "minecraft:uniform", "min": 1, "max": 3 } }] },
+        { "type": "minecraft:item", "name": "rivencraft:ink_vial", "weight": 4 },
+        { "type": "minecraft:item", "name": "minecraft:book", "weight": 3 },
+        { "type": "minecraft:item", "name": "minecraft:experience_bottle", "weight": 1 }
+      ]
+    },
+    {
+      "rolls": { "type": "minecraft:uniform", "min": 1, "max": 2 },
+      "entries": [
+        { "type": "minecraft:item", "name": "rivencraft:ink_vial", "weight": 3 },
+        { "type": "minecraft:item", "name": "minecraft:book", "weight": 2 },
+        { "type": "minecraft:item", "name": "minecraft:experience_bottle", "weight": 1 }
+      ]
+    }
+  ],
+  "random_sequence": "rivencraft:chests/mystcraft_library"
+}