Count new mobile extensions

[Stell0]

We count the number of mobile extensions in the daily report, but there isn't difference between legacy flexysip extensions and new ones.

• Count only old extensions in the 'app_extensions_count' of inventory
• Count only the new in the 'new_app_extensions_count' of inventory

transport can be used to distinguish between old (uses tcp) and the new (tls)

https://github.com/orgs/nethesis/projects/7/views/4?pane=issue&itemId=57696318

[nethbot]

in 7.9.2009/nethesis-testing:

• nethserver-nethvoice14-14.18.5-1.1.ga07eb21.ns7.noarch.rpm x86_64

[nethbot]

in 7.9.2009/nethesis-updates:

• nethserver-nethvoice14-14.18.6-1.ns7.noarch.rpm x86_64