Create files from Grasscutter-Quests

these files are NOT directly compatible with Grasscutter, and require additional modifications to the codebase to work.

src/main/java/emu/grasscutter/data/binout/config/ConfigEntityGadget.java

@@ -0,0 +1,11 @@
+package emu.grasscutter.data.binout.config;
+
+import lombok.AccessLevel;
+import lombok.Data;
+import lombok.experimental.FieldDefaults;
+
+@Data
+@FieldDefaults(level = AccessLevel.PRIVATE)
+public class ConfigEntityGadget extends ConfigEntityBase {
+    // There are more values that can be added that might be useful in the json
+}