Support uncompressed folders

[onetonfoot]

Does the current tool support using folders that aren't compressed? For example, I'd like to use a local folder without compressing it by putting this in the KfDef

  repos:
  - name: custom
    uri: /home/dom/Code/kubeflow-manifests

However, I can only get it to work by first running tar -cvzf and pointing the KfDef to that compressed folder