A structure with structure void included does not load structure void block(s) when loaded with a structure block. 

This is a continuation of Issue MCPE-66358. Creating this new ticket as requested by "Megs_Spud" in the comment section of 66358. This also affects Java edition as well. The Op of that issue did not reply back to requests to complete so this will hopefully complete what was requested. 

To reproduce.

1. Create a structure that includes a "structure void" inside.
2. Save the structure using structure blocks.
3. Load the structure in a different location with a structure block. The structure void will be gone.

This creates issues with making new structure files when you have to replace the structure void every single time you test with a new structure. 

Solution.

Add a option in the "Load" section of the structure block that allows the structure void to be reloaded with the structure for editing.