smb: import latest kdsoap-ws-discovery-client before 20.04 freeze

now at 14287e92e80a77aa4c0adee2871e6b87c9c3055e

all non-library stuff continues to be disabled, additionally the QCH
build inside src directory was disabled as it's not useful and not
building as-is.

also comment what ref we actually have currently inside our cmakelists.txt