Create new field for deployed modules

[giovannibianco]

Both the kubernetes and docker-deployed NEs need to write a list of installed peripherals (and VPN client?) (modules) to the API.
So when the "Update" is called on the NE, the list of already installed modules is known by both the UI page and the updating code.
Propose to create a new field in the installation parameters in nuvlabox_status called "modules".