Port gitlab.com/sfdx/sfdx-project-template to this repo
To Do :
- Update readme.md Part I section to remove import instruction s
- Update .gitlab-ci.yaml file reference to ci template once this MR is approved and into the product.
- Deprecate the respective projects in gitlab.com/sfdx to notify project contents are now in the product and managed in https://gitlab.com/gitlab-org/project-templates.