* Add working registry pkg

* Add custom error for handling the loading of PAR environment variables

* Working Publish to Build, with proper error handling for bucket names

* Update hcp-sdk-go to use branch instead of mod replace directive

* Update Packer build status configuration

* Add support for HCP_PACKER_BUILD_FINGERPRINT env

* Add support for publishing one or more PARtifacts from a single build

* add git shas to this branch

* Add ability to set provider name if available

* Add working RegistryBuilder type

* Add RegistryPostProcessor as wrapper post-processor

* When in PAR mode a empty RegistryPostProcessor is added to the end of
  the post-processor list to publish all final image data.

* Add support for updating a build from PAR that is not in a DONE state

* Fix a small issue with creation the initial builds for an empty
  iteration.

* Add PAR URL to post-processor display

* Implement hcp_packer_registry block (#11168)

* Update vendored Amazon plugin to v1.0.1-dev

* Fix panic when running a Packer registry build in a clean directory

* Remove the publishing of post-processor metadata from the registry
  post-processor.

* Remove metadata add from registry_builder

* Update registry builder to skip a build that was found to be DONE
Co-authored-by: Megan Marsh <megan@hashicorp.com>
Co-authored-by: Sylvia Moss <moss@hashicorp.com>