Role table removed - role-attrs initialization component - refactor

TODO:

• update documentation in Charts repo with examples
• wait for client roles -> realm roles migration before merging. Draft: Feature/copy client role to realm roles (!139) · Merge requests · Simpl / Simpl-Open / Development / IAA / Users Roles · GitLab

Description

• Role table removed;
• All roleController endpoints must now use roleName as the identifier for operating on roles. All API endpoints use roleId;
• All role service methods now work directly with keycloak;
• Column role_id (uuid) of identity_attribute_roles table converted to role_name (varchar);
• Role-Attributes mapping initialization component added:
  • It is now possible to populate the identity_attribute_roles table with roles and attributes that have not yet been created. Each entry will have enabled=false
  • configmap values updated
• Logical data model updated;
• Switch from client roles to realm roles.

Merge Request Checklists

• I have already covered the unit testing
• Deployment documentation has been updated