grandparent_title to be added to tags

[jsgiacomi]

Chatted with @samwiseg0 and he instructed me to add this request:

I would like to add the base "Show" into Varken as a variable. This will allow us to see play count by a Show instead of a specific Episode.

Example:
10 people played an episode from the show "The Simpsons"
Currently we have insight into:
2 people played the specific episode "The Simposons - Cape Feare"