Deployment fixes

[sjahl]

In an effort to make development environments a little more dynamic (wrt resource usage, differing configuration, etc), and reducing custom code that does things popular deployment tools can do, I'd like to finish overhauling our Kustomize configs, and start paving the way for automating deployments. The following issues are the currently documented cases where I can start.

• Use Kustomize to manage K8S deployments #841
• Remove local kustomization.yaml files from deployment process #846
• Reduce resource quotas for demo deployments #728
• Demo deployment issues #679
• Support providing an alternate name for elasticsearch when generating kustomize configs #1346
• Allow for demo deployments to optionally include the reads deployment #1342