- Pulls logic for defaulting to active namespace (K8S) moved UP to CLI during
  flag default calculation.
- Pushes logic of deciding between f.Namespace vs f.Deploy.Namespace down into
  implementations.
- Updates some tests which needed to have their environment cleared.
- Refactors Pipelines tests to use client API.
- Removes namespaces as a state variable all structures, instead passing as
  an argument.
- Moves FromTempDirectory to testing package for use outside cmd.