refactored `create_table` and `backup_table` - transferred from `storage_impl` to `storage_t` to be able to get any table name by type in `sync_schema` for foreign keys
refactored `create_table` and `backup_table` - transferred from `storage_impl` to `storage_t` to be able to get any table name by type in `sync_schema` for foreign keys

fnc12/sqlite_orm,fnc12/sqlite_orm