Replace old ldap mapper code

ldap3_mapper/__init__.py

ldap3_mapper/base.py

ldap3_mapper/db_relation.py

ldap3_mapper/types.py

ldap_mapper/__init__.py

ldap_mapper/attribute.py

ldap_mapper/core.py

ldap_mapper/dbutils.py

ldap_mapper/model.py

ldap_mapper/relationship.py

uffd/ldap.py

uffd/role/models.py