Add 1.20.4 implementation

Author: RappyTV

game-runner/src/v1_20_4/java/io/masel/nbtviewer/v1_20_4/NBTApiImpl.java

@@ -0,0 +1,25 @@
+package io.masel.nbtviewer.v1_20_4;
+
+import io.masel.nbtviewer.api.INBTApi;
+import net.labymod.api.models.Implements;
+import net.labymod.api.nbt.tags.NBTTagCompound;
+import net.minecraft.client.Minecraft;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtUtils;
+
+@Implements(INBTApi.class)
+public class NBTApiImpl implements INBTApi {
+
+    @Override
+    public boolean hasAdvancedToolsTips() {
+        return Minecraft.getInstance().options.advancedItemTooltips;
+    }
+
+    @Override
+    public String prettyPrint(NBTTagCompound nbtTagCompound) {
+        CompoundTag compound = (CompoundTag) nbtTagCompound;
+
+        return NbtUtils.prettyPrint(compound);
+    }
+
+}