Installer integration with the 2nd and 3rd party QBSP distribution

We need a mechanism on Online installer to discover more QBSP packages available through QTBI-1280 and QTPM-1413. This could be, e.g., behind the 'Add QBSP' button a mechanism to both browser local hardrive and go to the web page where more QBSP packages are available. Or something elöse depending on what is the implementation with QTBI-1280.