Add texture bias option

[Quinten]

Feature request #7

Create a more horizontal or vertical maze

I only updated the .ts file. Tested it from my code by using npm link. I will leave updating dependencies, building, ... to you.

Also tested values like

• 2 (just splits down into 2 sets)
• -2 (all vertical columns)

While it doesn't feel like a maze, it also doesn't produce errors.

Kind regards,
Quinten