O-must-gather

- Improvements to omg-use
- Ignore files when searching for must-gather root directory (newer must-gather have added files like `event-filter.html` and `timestamp`)
- Show clear message when failing because of multiple directories
- Enable omg to work on inspect directories (e.g, `oc adm inspect ns/xyz`

- Creating map dict dynamically from the crds as fallback
This means omg can now potentially support all (as long as the crd is there) resource types. We are not limited to the ones we have in the `map` array of dictionaries.

- Addition of --show-labels for various key object types

- Fixed age bug where months/years were being ignored

- Fixed bash completion for bash < 4.4

- Limit cryptography version <=3.3.2