Fixed folders not being created when building repo

[theo-meow]

Added a missing feature that caused building to fail of no folders are created.
Fixed this by automatically detecting if the folders are present, and if not, creating them.

[Ninjistix]

altho the game is old, its kinda sad to see some of these projects abandoned

edit: would it be possible to look into updating the build.py to the latest devkit pro

[Hartie95]

I will merge it, after you completed and added the Linux build fixes, you are working on.

[theo-meow]

edit: would it be possible to look into updating the build.py to the latest devkit pro

The project is building in the latest devkitpro (for me at least).
Alltough I am not sure why, since the version is hard-coded into the script.

[theo-meow]

This is obsolete, and is now included in Pull Request #32