Add a new cog that uses FTC-Events and has more modern embeds

[guineawheek]

Pretty much everyone in FTC since Skystone uses FTC-Events instead of TOA, so we should have embeds that link there instead.

A username/token pair can be registered easily at https://ftc-events.firstinspires.org/services/API and added to the configuration file under

"ftc-events": {"username": "put username here", "token": "put token here"}

This cog should deprecate the TOA cog.