wbemprox: Accept 0 and WBEM_FLAG_ALWAYS | WBEM_MASK_CONDITION_ORIGIN as flags in IWbemClassObject::GetNames().

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=34770Signed-off-by: Gijs Vermeulen <gijsvrm@gmail.com>
Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>