Add bPermissions migration

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

@@ -244,6 +244,15 @@ public class LPSpongePlugin implements LuckPermsPlugin {
         return Sponge.getServiceManager().provideUnchecked(clazz);
     }
 
+    @Override
+    public UUID getUUID(String playerName) {
+        try {
+            return game.getServer().getPlayer(playerName).get().getUniqueId();
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
     @Override
     public boolean isPluginLoaded(String name) {
         return game.getPluginManager().isLoaded(name);
@@ -251,17 +260,17 @@ public class LPSpongePlugin implements LuckPermsPlugin {
 
     @Override
     public void runUpdateTask() {
-        scheduler.createTaskBuilder().async().execute(new UpdateTask(this)).submit(LPSpongePlugin.this);
+        scheduler.createTaskBuilder().async().execute(new UpdateTask(this)).submit(this);
     }
 
     @Override
     public void doAsync(Runnable r) {
-        scheduler.createTaskBuilder().async().execute(r).submit(LPSpongePlugin.this);
+        scheduler.createTaskBuilder().async().execute(r).submit(this);
     }
 
     @Override
     public void doSync(Runnable r) {
-        scheduler.createTaskBuilder().execute(r).submit(LPSpongePlugin.this);
+        scheduler.createTaskBuilder().execute(r).submit(this);
     }
 
     private void registerPermission(PermissionService p, String node) {

sponge/src/main/java/me/lucko/luckperms/users/SpongeUser.java

@@ -23,8 +23,6 @@
 package me.lucko.luckperms.users;
 
 import me.lucko.luckperms.LPSpongePlugin;
-import me.lucko.luckperms.api.event.events.UserPermissionRefreshEvent;
-import me.lucko.luckperms.api.implementation.internal.UserLink;
 
 import java.util.UUID;