[#71587328] Updating service-webhooks and adding TeamSnap support

This adds updates to the service-webhooks project and adds support for the TeamSnap integration.

This pull request is dependent on:
https://github.com/AllPlayers/allplayers-mainline/pull/3912
https://github.com/drupalprojects/resque/pull/1
https://github.com/mattsqd/allplayers-api/tree/75815340-Partner_mapping_7-25-14
Even if all webhooks implement a partner map, the processing of partner mapping and the complexity involved demands its own class, separation of concerns is always good practice.  The end-goal being that if we ever need to change the way we implement partner mapping, we can just switch classes pertaining to just that functionality.