HPCC-9163 Get cloned remote file descriptor once per CResolvedFile

For cloned files Roxie was getting the remote file descriptor
from dali for each file activity.  The information should be retrieved
only once when the CResolvedFile is created, and should use the
roxie dali helper to avoid issues if dali is down.

Signed-off-by: Anthony Fishbeck <Anthony.Fishbeck@lexisnexis.com>