Lib389 Aci parsing utilities

[William Brown]

https://fedorahosted.org/389/ticket/48259

https://fedorahosted.org/389/attachment/ticket/48259/0001-Add-aci-parsing-ut...
ies-which-will-return-an-Entry.patch

Relies on

https://fedorahosted.org/389/ticket/48253

Sincerely,