Describe security model for deployment objects

[renardeinside]

Security is always important, so the following explanations should be given:

• How to secure the workspace_dir with the underlying mlflow experiment
• How to secure the artifact_location on the underlying FS (ADLS/S3).

Acceptance criteria:

• Meaning and location of workspace_dir and artifact_location are described
• Workspace directory security measures are described
• Artifact location security measures are described

[renardeinside]

Solved with the above-mentioned PR.