[enhancement] Added missing LDAP control ControlMicrosoftSDFlags to control.go

[p0dalirius]

Hi,

I have added a new structure for the LDAP_SERVER_SD_FLAGS_OID control structure that allows to query security descriptors on Windows. Otherwise, as this was brought to me by a colleague, they are not returned in the results of the LDAP query (only empty values).

https://stackoverflow.com/questions/40771503/selecting-the-ad-ntsecuritydescriptor-attribute-as-a-non-admin/40773088#40773088

Source: https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-adts/3888c2b7-35b9-45b7-afeb-b772aa932dd0

In the future, wouldn't that be nice to have a controls/ submodule containing one file per control structure as well as a global file containing all the OIDs? This would make the codebase more readable in my opinion. What do you think @cpuschma?
If you agree I volunteer to do this for the Microsoft Controls :)

Best regards,

[cpuschma]

Thank you for your PR, @p0dalirius. While moving the controls to their own module would certainly clean up the codebase, it would also break backwards compatibility. As with v3, we would have to introduce a transition period and maintain the controls in both folders. I'm open for solutions to this!

[johnweldon]

I think we could move the controls into the sub module and then just put type aliases in the top level module