Subscribers and Unprovisioned Subscribers Count on /groups endpoint

[resatcaner]

Issue:

Category: New Feature Request

Area: API/Android/Ios/Windows/Portal

Description: https://api2.kaiza.la/v1/groups/{Group ID} endpoint does not return the subscribers count and unprovisioned subscribers count. The information only exists on https://api2.kaiza.la/v1/groups/fetchAllGroups=true endpoint as SubscribersCount and unProvisionedSubscribersCount