Adding vendor-specific ldap_set_options

[Eric Clements <eclements@apple.com>]

Hello,

I am interested in adding a specific ldap_set_option to the OpenLDAP  
source that would be classified as a "vendor" specific option to take  
advantage of platform features.  I see various ranges in the ldap.h  
file, but no range called out specifically for vendor extensions.  Is  
there a particular range that should be used to prevent conflicts with  
future OpenLDAP development?

Thank you,
Eric Clements