Partially add migration support

sponge/src/main/java/me/lucko/luckperms/LPSpongePlugin.java

@@ -190,6 +190,11 @@ public class LPSpongePlugin implements LuckPermsPlugin {
         return "null";
     }
 
+    @Override
+    public Type getType() {
+        return Type.SPONGE;
+    }
+
     @Override
     public Message getPlayerStatus(UUID uuid) {
         return game.getServer().getPlayer(getUuidCache().getExternalUUID(uuid)).isPresent() ? Message.PLAYER_ONLINE : Message.PLAYER_OFFLINE;
@@ -224,6 +229,21 @@ public class LPSpongePlugin implements LuckPermsPlugin {
         return p.get().getDescriptions().stream().map(PermissionDescription::getId).collect(Collectors.toList());
     }
 
+    @Override
+    public Object getPlugin(String name) {
+        return game.getPluginManager().getPlugin(name).get().getInstance().get();
+    }
+
+    @Override
+    public Object getService(Class clazz) {
+        return Sponge.getServiceManager().provideUnchecked(clazz);
+    }
+
+    @Override
+    public boolean isPluginLoaded(String name) {
+        return game.getPluginManager().isLoaded(name);
+    }
+
     @Override
     public void runUpdateTask() {
         scheduler.createTaskBuilder().async().execute(new UpdateTask(this)).submit(LPSpongePlugin.this);