Tag events using complex filters on a per-event basis

[captn3m0]

We have a large post-build script that works fairly well and fast for the easy cases. For complex cases, we need a Python framework that goes through each event, and tags them on a per-event filter basis.

Some things that are inherently hard due to the JSON schema we use can become easier in the Python world. Examples would be anything that involves filtering using offers, or geo - much simpler to do in Python.