HPCC-10181 Add Compile Time to WUQueryDetails response

The compile time is read from TimeStamps/TimeStamp[@application=
"EclServer" or "EclCCServer"] inside ECL WU xml.
Merge pull request #4946 from wangkx/h10181

HPCC-10181 Add Compile Time to WUQueryDetails response

Reviewed-By: Gordon Smith <gordon.smith@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>