Consolidate serialization helpers to be static and shared

[Virtual-Josh]

In the teams_helper there are 2 serialization helper methods. Currently they both create a big dict of all the Model objects that exist in Teams and BF. We should make the optimization to make the big dict once, and update the 2 helpers to use the new dict.

[cleemullins]

@Virtual-Josh, please drive to closure. Add better description.