Implement quest rewards

src/main/java/emu/grasscutter/data/common/ItemParamData.java

@@ -1,7 +1,12 @@
 package emu.grasscutter.data.common;
 
+import com.google.gson.annotations.SerializedName;
+
 public class ItemParamData {
+	@SerializedName(value="Id", alternate={"ItemId"})
 	private int Id;
+	
+	@SerializedName(value="Count", alternate={"ItemCount"})
     private int Count;
 
     public ItemParamData() {}
@@ -14,7 +19,15 @@ public class ItemParamData {
 		return Id;
 	}
 	
+	public int getItemId() {
+		return Id;
+	}
+	
 	public int getCount() {
 		return Count;
 	}
+	
+	public int getItemCount() {
+		return Count;
+	}
 }

src/main/java/emu/grasscutter/data/common/RewardItemData.java

@@ -1,22 +0,0 @@
-package emu.grasscutter.data.common;
-
-public class RewardItemData {
-    private int ItemId;
-    private int ItemCount;
-
-    public int getItemId() {
-        return ItemId;
-    }
-
-    public void setItemId(int itemId) {
-        ItemId = itemId;
-    }
-
-    public int getItemCount() {
-        return ItemCount;
-    }
-
-    public void setItemCount(int itemCount) {
-        ItemCount = itemCount;
-    }
-}