- Remove all references to submodules
- Follow upstream Cloud Native GitLab chart
- Create wrapper chart gitlab-mp for Google GKE Marketplace and
  override values from a top level values.yaml file
- Add env-doctor.sh script allowing users to quickly verify their
  build environment tooling
- Fortify all existing scripts to work when invoked from any path
- Remove deprecated scripts
- Simplify Dockerfile to use deployer_helm_tiller image and move it
  and the build context into a directory named container
- Dynamically configure schema.yaml, requirements.yaml, and
  mapping.yaml based on user configuration
- Support RBAC entry insertion to schema.yaml
- Add tooling to build, validate, and validate the deployer container
- Add tooling to tear down the testing environment
- Update all documentation to reflect the new process
- Update .gitlab-ci.yaml file to reflect the updates
- Tag deployer containers with the Major.Minor and Major.Minor.Patch
  versions when building from helm charts and with the branch name
  when building from arbitrary Cloud Native Gitlab chart branches
- Support definition of an external Load Balancer IP address
- Use Google Marketplace Integration charts

Resolves: https://gitlab.com/charts/gitlab/issues/1041



Signed-off-by: Robert Marshall <rmarshall@gitlab.com>