[PATCH 3/13] msidb: Add support for adding stream/cabinet files to MSI databases.

[Erich E. Hoover]

msidb allows developers to add "streams" (cabinet files) to a database
with the "-a" mode flag followed by a filename, example:
msidb -d package.msi -a cabinet.cab

[Hans Leidekker]

Signed-off-by: Hans Leidekker <hans(a)codeweavers.com>