added new variable to process transfer source folder deletion

[mutanthumb]

added new variable "--transfer_delete_path" to delete folder from watched folder after transfer is complete.

This is to resolve: #127

[mutanthumb]

I haven't done a pull request in years so if I screwed this up please let me know!

[mamedin]

That's was fine @mutanthumb . Your PR was perfect, but yesterday a new commit was added to our main branch and had a conflict with your commit.

I have rebased your branch with latest commits and fixed the conflict, and create a new branch in our repo:

I'm going to close this PR and create a new one using the new branch, but using your commit (I only changed a LOGGER line).

@mutanthumb you did all fine, we need to change it because our latest changes and to make the code review and merge easier.

[mamedin]

Closed in favor of #141