Present information on already-installed peripherals to Update page.

[giovannibianco]

User is updating their NuvlaEdge (NE).
The update process could be no change in version but a change in the modules on the NE.
When the user is presented with the Update pop-up window, the existing modules on the NE should be pre-checkmarked (possibly light colour) so that they are aware of which modules are already installed on their NE.

Therefore the UI needs to pick up the information about the already-installed modules from the API

nuvla/api-server#820 describes what needs to be added to the API

This task is to read that information and display to the Update pop-up page.