fcl-db: base: addition to rev.25543 + move property Stream from public to protected section.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25566 3ad0048d-3df7-0310-abae-a5850022a9f2
 * zip64 support by Reinier Olislagers, mantis #23533


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25567 3ad0048d-3df7-0310-abae-a5850022a9f2