feat: introduce new versioning & Minecraft compatibility system

bukkit/src/main/java/net/william278/husksync/BukkitHuskSync.java

@@ -137,6 +137,9 @@ public class BukkitHuskSync extends JavaPlugin implements HuskSync, BukkitTask.S
     public void onEnable() {
         this.audiences = BukkitAudiences.create(this);
 
+        // Check compatibility
+        checkCompatibility();
+
         // Register commands
         initialize("commands", (plugin) -> getUniform().register(PluginCommand.Type.create(this)));