feat: Support 1.19 to 1.21 implementations

Author: atferrys

src/it/uknowngino/moddedintegration/enums/ServerVersion.java

@@ -1,9 +1,6 @@
 package it.uknowngino.moddedintegration.enums;
 
-import it.uknowngino.moddedintegration.implementation.PopulationImplementation;
-import it.uknowngino.moddedintegration.implementation.V1_12_Implementation;
-import it.uknowngino.moddedintegration.implementation.V1_16_Implementation;
-import it.uknowngino.moddedintegration.implementation.V1_18_Implementation;
+import it.uknowngino.moddedintegration.implementation.*;
 import it.uknowngino.moddedintegration.main.ModdedIntegration;
 import it.uknowngino.moddedintegration.utils.LogUtils;
 import org.bukkit.Bukkit;
@@ -17,9 +14,15 @@
 
 public enum ServerVersion {
 
+    /* >= 1.12 */
     V1_12(V1_12_Implementation.class),
+    /* >= 1.16 */
     V1_16(V1_16_Implementation.class),
-    V1_18(V1_18_Implementation.class);
+    /* >= 1.18 */
+    V1_18(V1_18_Implementation.class),
+    V1_19(V1_18_Implementation.class),
+    V1_20(V1_18_Implementation.class),
+    V1_21(V1_18_Implementation.class);
 
     private final Class<? extends PopulationImplementation> implementationClass;
     private final Supplier<Boolean> customVersionCheck;