Issue 27 - Add a module for working with dse.ldif file
Description: For some tests we need a way to parse and edit dse.ldif
file. For starters, it will be nice to have next operations support:
- get - Return attribute values under a given entry;
- add - Add an attribute under a given entry;
- delete - Delete singlevalued or multivalued attributes under a given entry;
- replace - Replace attribute values with a new one under a given entry.
Add tests to lib389/tests/dseldif_test.py
https://pagure.io/lib389/issue/27
Reviewed by: wibrown (Thanks!)