Fail Fast option

**Describe the problem/challenge you have**
Currently, I use kbld to build up to ~70 container images to deploy alongside my K8s manifests. These images, without caching, may take upwards of 10 minutes to build in CI. If there is an error in one of those builds, the errors for this are buried somewhere deep in my CI logs.

**Describe the solution you'd like**
An option that tells kbld to cancel all remaining builds and terminate in-progress ones as soon as a single build fails. Perhaps `--fail-fast` or similar.

**Anything else you would like to add:**
N/A

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