Gigwa integration

[guignonv]

• Create a Gigwa module for GenoRing
• Add uninstall support
• Link Gigwa interface with the Drupal portal
• Implement a Drupal module to better integrate Gigwa in Drupal
• Interface Drupal authentication with Gigwa authentication
• Interface Gigwa UI restrictions (hide menus or items)
• Manage data import: add a shared docker volume for VCF import managed by Drupal (content check, metadata, versioning)