mark Properties as deprecated

common/api/core/src/main/java/com/dfsek/terra/api/block/state/BlockState.java

@@ -41,6 +41,4 @@ public interface BlockState extends Cloneable, Handle {
     String getAsString();
     
     boolean isAir();
-    
-    boolean isStructureVoid();
 }

common/api/core/src/main/java/com/dfsek/terra/api/block/state/properties/base/Properties.java

@@ -14,7 +14,7 @@ import com.dfsek.terra.api.block.state.properties.enums.RailShape;
 import com.dfsek.terra.api.block.state.properties.enums.RedstoneConnection;
 import com.dfsek.terra.api.block.state.properties.enums.WallHeight;
 
-
+@Deprecated
 public final class Properties {
     public static final EnumProperty<Direction> DIRECTION = EnumProperty.of("facing", Direction.class);
     public static final EnumProperty<Axis> AXIS = EnumProperty.of("axis", Axis.class);