Added ctor funtion for SequenceInputStream(Service) in comphelper. Change-Id: I043e46aa283709f316e7ad794e15438f6b2d955f Reviewed-on: https://gerrit.libreoffice.org/23564 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Stephan Bergmann <sbergman@redhat.com>