Integrate gitlab-ci/CI-report-image-diff-rewrite and 3 more

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@57087972

report-image-diff: Rewrite the report image diff to use buildhistory

The old way used the gitlab UI to load the html overview for the
artefacts, but this didn't worked for private repos, as the login
was not implemented. Loading file from the buildhistory with known
names uses the gitlab API, where the credential handling is provided.

Also replace loops and duplicated code with internal classes, which
massively restructures the code.

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@9b2134aa

report-image-diff: Get target branch correctly

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@0ff7cdfd

scripts: buildartifacts: Add main and parameters for testing

Also add download for build.env

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@6b108164

CI: build: Add buildhistory/images to the artifacts, and image name to build.env