Replace please with Makefile

[ptzianos]

This PR removes all please related configuration from the repository and replaces it with Makefile.

Changes include the following:

• Remove all BUILD files*
• Remove k3d documentation
• Update KiND documentation**
• Add documentation about all the components that require to be deployed
• Cleanup example pipelines
• Add files to allow users to deploy examples with helm
• Cleanup openapi tests
• Fix Github code quality checks
  • test
  • lint
  • format
  • test coverage
• Add Github actions for producing releases based on tags
• Allow user to define custom base images for components
• Add draconctl to build pipelines and deprecate the kustomize-component-generator
• Add draconctl subcommand for managing migrations

* some BUILD files will remain in the repo, since they might be related to parts of the code that we need to discuss in the future if we want to support at all or if we want to completely get rid of
** KiND is the only officially supported deployment method at this point. users are going to be free to choose other methods of running their local clusters should they wish to. updated documentation will reflect this change

Closes #62, #63, #64, #65, #66, #67, #68, #69, #70, #71, #72, #73, #74, #90, #101, #102, #103, #104, #105, #106, #107, #108, #109, #112, #118

[northdpole]

great job pavlos!