[PATCH 2/13] msidb: Add support for importing database tables.

[Erich E. Hoover]

msidb uses a nice CLI syntax for adding multiple database tables in
one call with the "-i" mode flag, this patch implements that syntax.
For example, this call would import three tables from the current
directory (ActionTe.idt, Componen.idt, and InstallE.idt):
msidb -d package.msi -f . -i ActionText Component InstallExecuteSequence