move migrate tooling to 'hack' folder

[hilmarf]

What this PR does / why we need it

cleanup root folder

Which issue(s) this PR fixes

related to open-component-model/ocm-project#243

[github-actions]

Mend Scan Summary: ❌

Repository: open-component-model/ocm

VIOLATION DESCRIPTION	NUMBER OF VIOLATIONS
HIGH/CRITICAL SECURITY VULNERABILITIES	4
MAJOR UPDATES AVAILABLE	0
LICENSE REQUIRES REVIEW	3
HIGH RISK LICENSES	10
RESTRICTIED LICENSE FOR ON-PREMISE DELIVERY	0

Detailed Logs: mend-scan-> Generate Report
Mend UI

[ocmbot]

Integration Tests for f2dec73 run with result: Success ✅!

[morri-son]

Hi @hilmarf , rödelt das Skript nicht auf Verzeichnissen rum, z.B.

# ocm extensions
for s in api/ocm/{repositories,accessmethods,blobhandler,attrs,download,actionhandler,digester,labels,resourcetypes,pubsub}; do
  mig $s api/ocm/extensions "${build[@]}"
done

Da müsste man eventuell das Skript vorher noch mit cd .. wieder an den richtigen Einstiegspunkt setzen, oder?

[hilmarf]

rödelt das Skript nicht auf Verzeichnissen rum, z.B.

true - but since we have done the migration already, it's not used in this repository anyhow/anymore. Still we should keep it, because it can easily be adapted to migrate other ocm-lib consumer repos.