Hello,
Because of all the help and time you gave to use, I will do it with pleasure!
Because I'm not a professional coder, and I'm not the only one, I was wondering If our code needs to be review by you or other member of the team before committing this to the eco system? I don't want to scrap people project with memory leak or other "not well optimize" action.
For this one, It should be alright I guess because it's just checking path and platform.
Anyway, c'est un plaisir de contribuer Jean

Update: Ok, it's on the eco system, and I can get it to my project. The only problem I have is the ecosystem is not checking if I already have this action in my project folder (locate to different folder than PlayMaker Custom Actions).
It's just an advice but if the eco system can tell us we already have this action in other playmaker action folder, it could be great I guess.