This plugin creates a deployment package on a per service basis (it will zip up all code for the whole service).
Package starts by hooking into the deploy:createDeploymentArtifacts lifecycle.
It will zip the whole service directory. The artifact will be stored in the .serverless directory which will be created
upon zipping the service. The resulting path to the artifact will be appended to the service.package.artifact property.
The services include and exclude arrays are considered during zipping. At first the exclude will be applied. After
that the include will be applied to ensure that previously excluded files and folders can be included again.
Serverless will automatically exclude .git, .gitignore, serverless.yml, serverless.env.yml and .DS_Store.
Servlerless will skip this step if the user has defined it's own artifact in the service.package.artifact property.
At the end it will do a cleanup by hooking into the [after:deploy:deploy](/lib/plugins/deploy) lifecycle to remove the
.serverless directory.