Add PathRegion, PathArea and PathRegionData

Add VariantSelector
Add DynamicRegionCommand
Fix RegionData constructor

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/region/Region.java

@@ -24,6 +24,7 @@ import de.steamwar.bausystem.utils.FlatteningWrapper;
 import de.steamwar.bausystem.utils.PasteBuilder;
 import de.steamwar.sql.GameModeConfig;
 import lombok.NonNull;
+import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.Material;
 
@@ -82,6 +83,9 @@ public interface Region extends RegionDataStore {
 
     interface Area {
 
+        int WORLD_MIN_Y = Bukkit.getWorlds().get(0).getMinHeight();
+        int WORLD_MAX_Y = Bukkit.getWorlds().get(0).getMaxHeight();
+
         Area EMPTY = new Area() {
             @Override
             public boolean isEmpty() {