Function diff_entries 

pub fn diff_entries(
    source_entries: &HashMap<String, LDAPEntry>,
    destination_entries: &HashMap<String, LDAPEntry>,
    source_base_dn: &str,
    destination_base_dn: &str,
    ignore_object_classes: &[String],
    ignore_attributes: &[String],
    source_ldap_schema: &LDAPSchema,
    add: bool,
    update: bool,
    delete: bool,
) -> Vec<LDAPOperation>

diff two sets of LDAPEntries which had their base DNs removed and generates LDAP operations (add, update, delete) to apply to the destination to make it identical to the source