test_build.sh:
Add more release types and use artifact_bytes instead of
artifact_mebibytes.

test_build.sh:
Set the correct type for the data_count metrics.

test_build.sh:
Add different types of metrics (info, gauge, summary).

.gitlab-ci.yml:
Copy the metrics file instead of moving it

test_build.sh:
Use "description" instead of "name" label in metrics.

test_build.sh:
Emit proper info metrics to the metrics file in output dir.

* test_build:
  Add gitlab CI integration
  Add test build script

.gitlab-ci.yml
Create gitlab CI integration to tag releases on a schedule.

test_build.sh:
Add script to create dummy files for dummy releases