Make LDAP directory report partial results if provided by the server when server size limit is reached

If the server sends back the truncated partial result list before sending the size limit exceeded LDAP error, the LDAPSession API should still successfully send back the results to the caller.

Questions:

1- Would it be useful to the wrap the results in a TruncatedDocumentModelList that would derive from the regular DocumentModelList but would be a marker interface to make the caller aware that the results are incomplete?

2- Should we issue a log.warn when SizeLimitExceeded exception is caught or just ignore it?