Fix rebuild voxel shape cost too much time, close #314

[SeaLoong]

I tested the code in my case(#314). I hardly feel any frozen.

In addition, it can decrease the time cost down to less than 100ms(in my case), just replace Shapes.join with Shapes.joinUnoptimized

[SeaLoong]

Performance Difference

• The controller has connected with 16 x 20 x 16 Drawers and 16 x 20 x 16 Extensions

Replace Shapes.join with Shapes.joinUnoptimized

https://github.com/user-attachments/assets/0d47b3e4-7b50-4120-b094-75afed4c3948

There is about 1s game frozen in this test case.

Using the loop implement, also using replaced join function

https://github.com/user-attachments/assets/e3e526de-f9a7-44f6-b4ec-a0c1348ceb83

You can see there is still a bit game frozen, in this test case. But it is hardly perceivable.