Integrate gitlab-ci/cleaos-443-automatic-sdk-build

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Commit: clea-os/infrastructure/gitlab-ci@a4de07e9

[SDK] Implement Automatic SDK Build

  * Add build pipeline for SDK.
  * Introduce variable ARTIFACTS_PATH to separate path to artifacts
    for images and SDK.
  * Remove pathname.txt We detect artifacts path with ARTIFACTS_PATH now
  * Remove BUILD_DIR, BUILD_DIRECTORY and MACHINE from build task.
  * Adapt artifacts_name.sh, check_build_artifacts.sh,
    deploy_artifacts.sh, generate_report.sh to handle SDK artifacts as
    well.