**What**
- Add workflow + step for detaching sales channels from pub API keys
- Tweak linking error message to be more helpful
- Add `removeRemoteLink` step to delete API key workflow
What:
- Event Aggregator Util
- Preparation for normalizing event in a new format (backward compatible with the current format)
- GQL Schema to joiner config and some Entities configured
- Link modules emmiting events
**What**
- transform remote query object back to string array
- get all fields and fields from given relations from a GraphQL schema
Co-authored-by: Carlos R. L. Rodrigues <37986729+carlos-r-l-rodrigues@users.noreply.github.com>
