[Feature request] pac code add-data-source - allow providing multiple tables

[Marc Schweigert (devkeydet)]

When creating an app, using pac code add-data-source with a comma separated list of all the tables would increase code gen productivity.

Example:
pac code add-data-source -a "shared_sql" -c "c9a56bae5dcb43f7ac086a2fc86fd33c" -t "[dbo].[MobileDeviceInventory],[dbo].[EmployeeInformation]" -d "paconnectivitysql0425.database.windows.net,paruntimedb"