New: Add datasource creation DTOs and notification management interfaces

• Introduced CreateDatasourceDto and CreateDatasourceDtoResponse for datasource creation.
• Added DsNrwReplicationGroupDto for replication group options.
• Enhanced data storage manipulation DTOs to include replication group.
• Implemented notification DTOs including NotificationDto, NotificationDtoResponse, and paged responses.
• Created user notification opt-out DTOs and responses.
• Updated user DTO to allow optional fields for givenName and familyName.
• Modified user organization DTO to make uri optional and removed unused imports.
• Updated API exports to include new notification and user notification opt-out APIs.
• Changed base API path for deployment.

coscine/issues#2489