Add ability to ignore role's subfolders

[sparunakian]

Hi,

I'm currently using Molecule. It creates a molecule sub-folder in each role, in which we can find some playbooks unrelated to the functioning of the role. Ansigenome scans this directory and finds some variables that are listed as "internal variables".

Would it be possible to add the ability to ignore some role's sub-folders to Ansigenome? It would allow me to ignore the molecule sub-folder and prevent useless variables to be listed in the generated README.

Regards