Operational Attributes

[rhafer]

We shoudl add support for some core operational Attributes. Namely:

from RFC4512:

• creatorsName: the Distinguished Name of the user who added this entry to the directory,
• createTimestamp: the time this entry was added to the directory,
• modifiersName: the Distinguished Name of the user who last modified this entry, and
• modifyTimestamp: the time this entry was last modified.

from rfc4530:

• entryUUID