[codefresh][helmfiles] Add Codefresh pipeline, update helmfiles pattern

[Nuru]

what

1. [codefresh] Add a Codefresh pipeline to automatically build AWS Environment tools Docker images.
2. [helmfiles] Update to current pattern of pinning helmfiles to versions individually
3. [helmfiles] Use helmctl from Geodesic image rather than complicated make recipe.

why

1. Enable automatic building of Docker images so everyone can easily have access to up-to-date versions.
2. Provide the ability to upgrade one helmfile to a newer version while leaving others unchanged.
3. Reduce code duplication.