NXP-14672: don't depend directly on DatabaseHelper
NXP-14672: stop using deprecated SQLBlob, use StorageBlob instead
Merge branch 'master' of https://github.com/nuxeo/nuxeo-chemistry into FEATURE-NXP-14362-NuxeoCmisService-Runtime-Extensibility
NXP-14362: Support OpenCMIS Service Wrappers