Review of structure

[vsoch]

Example is here:

https://gist.github.com/vsoch/adba1cd620fb8280006e1533a3ab9928

Note details from the commit message:

init: adding skeleton for environment modules
    
This currently works to parse environment modules
(and not LMOD). We can add the latter if needed. It is a
fairly basic parsing that represents the top level module
(name and version) as nodes, and any binary/libs discovered
within the paths derived as children "binary" and "library."
For my testing case I do not have any because I used a dummy
repository of module files for which I do not actually have
the software for.