HPCC-9215 DALI should not check LDAP for non managed scopes

Currently dali makes time consuming calls to LDAP to check the permissions for every single file, even when that file not within a managed scope. This was causing dali to delay workunits that used to run in seconds, to over an hour or more.
This fix corrects behavior by first checking if the scope is managed (if it was added to the ESP "FileScopes" permissions), and if not, assign the default permission without calling out to LDAP

Signed-off-by: William Whitehead <william.whitehead@lexisnexis.com>