cleans up raws/mod.rs with trait impls for json parsing

src/raws/loot_table_structs.rs

@@ -0,0 +1,13 @@
+use serde::Deserialize;
+
+#[derive(Deserialize, Debug)]
+pub struct LootTable {
+    pub id: String,
+    pub table: Vec<LootTableEntry>,
+}
+
+#[derive(Deserialize, Debug)]
+pub struct LootTableEntry {
+    pub id: String,
+    pub weight: i32,
+}