Adding basic HashR support

[jkppr]

Description of the change

This PR adds the first helm chart to support the HashR project in osdfir infrastructure.

• Uses a postgresql container as storage for HashR results
• Runs the HashR workload as a CronJob
• Provides a data manager pod that allows to kubectl cp the necessary data into the storage volume.

Applicable issues

• part of #25

Additional information

This is submitted as a draft PR for initial review before I continue to add charts for other supported HashR processors (e.g. iso9660, GCP, AWS, etc.)

Checklist

• [x] Chart version bumped in Chart.yaml according to semver. This is not necessary when the changes only affect README.md files.
• [x] Newly added variables are documented in the values.yaml
• [x] Title of the pull request is descriptive

[wajihyassine]

Oh wait, before merging can you run helm dependency build it should create a Chart.lock file that needs to be merged in