wget dependency conflicts with another wget module

[adamcousins]

Not sure if this is best practices but is a good idea to add a package defined check around the wget package installation?

[jdavisp3]

I haven't found a great solution to this problem. The defined package check doesn't always seem to work for me. I've started using ensure_packages in newer development. Sometimes I find I just need to make it possible to disable package installation in one module to remove a conflict with another. Happy to accept a PR for this module doing that.