Demos on replay page

[Sciguymjm]

This data technically exists in the proto, but needs to be counted and displayed on the replay page.

Related files:

DistributedReplays/backend/database/wrapper/stats/chart_stats_wrapper.py

Line 62 in 46a61aa

def get_protobuf_stats(self, id_: str) -> List[DatabaseObjectDataPoint]:

This function can be modified to count the demos and add them to the stats since it already has access to the proto.