Add verbose output to Openwhisk provider deploy command

[cjelger]

When running serverless deploy with the openwhisk provider, the --verbose switch does not have any effect. It would be really helpful if this could add some details while performing the "Deploying Functions..." and "Deploying Sequences..." steps (and probably also all other steps too), so that it's clear what actions/functions are exactly being deployed. The summary displayed after the deployment is done is indeed confusing, because it displays a list of all actions deployed in openwhisk, and not only the actions deployed by serverless deploy.

cc: @jthomas as discussed on Slack