Add support for more project ecosystems that deploy artifacts onto JFrog Artifactory

[nathanwn]

In pull request #349, we added support for JFrog Artifactory as a package registry. However, only support for Gradle projects was added. We need to add support for other ecosystems of build tools, languages, repo layout (namely pypi and npm), etc. As a starting point, I recommend having a look at the changes in pull request #349 for more details on what needs to be made to support Gradle.