[BUG] - unable to write output files to non existence folders

[shimwell]

Describe the bug

When attempting to write files to folders that don't exist geouned crashes. We could instead used the mkdir command to make the folder for the user.

To Reproduce

Steps to reproduce the behavior: for example: change the geometryName to a folder with a file like randomfolder/csg_files

Expected behavior

folder should be made and file should be written

Error message

If applicable, include the error message displayed in the console: strange type of surface, unexpected exit, python exception…

Please complete the following information):

• OS: both windows and linux
• GEOUNED version both dev and main
• Python version 3.11

[shimwell]

I don't have repo permissions to self assign but just writing this message to say I'm keen to fix this issue

[shimwell]

solved by PR #162