VRFS-5128 report for ad campaigns
* Ad campaign report
add new admin report for monitor and analyze the results
from a variety of paid campaigns
* reload report after updating values using best_in_place
* add users first_subscribed_plan_code
use this new column in ad campaigns report to filter by
subscription plan
* set first_subscribed_plan_code in recurly subscription creation
* set correct value for first_subscribed_plan_code
Nuwan Chaturanga