HPCC-9448 Add soapplus to Client Tools build

Fixes HPCC-9448

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #4476 from GordonSmith/HPCC-9448

HPCC-9448 Add soapplus to Client Tools build

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>