show package download queue on agent systray

At the moment it is possible to get the inventory displayed in a windows when clicking on the agent's systray icon and clicking on "Show inventory information". This is nice to have for the user.

It would be also nice to have another option where the user can see which packages are still in the download queue. So the user who is reliable for its computer can have a look at this queue and see if the computer needs to have to stay some more time on the network or if he can uplug it because all updates were installed.

This could be realized this way:
The agent contacts the server and knows about the package ID and the corresponding name of this package. This will be saved on the client and can be displayed by the agent as the "download queue".
If the agent is sending back the result code for a package - no matter if success or not - it will be deleted from the client's "download queue".