Add Mojang DataFixerUpper dependency

nms/v1_18_R1/pom.xml

@@ -22,6 +22,11 @@
     </properties>
 
     <dependencies>
+        <dependency>
+            <groupId>com.mojang</groupId>
+            <artifactId>datafixerupper</artifactId>
+            <version>1.0.20</version>
+        </dependency>
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot</artifactId>
@@ -50,6 +55,16 @@
             <version>3.2.37</version>
             <scope>provided</scope>
         </dependency>
+        <dependency>
+            <groupId>it.unimi.dsi</groupId>
+            <artifactId>fastutil</artifactId>
+            <version>8.5.8</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot</artifactId>
+        </dependency>
     </dependencies>
 
     <build>