Track more data to allow for more accurate calculation of reputation

[FlorianZahn]

Most reputation calculations for crowdsourced projects work better with more data. Here are a few data points that could be stored to enable a future change in how SponsorBlock calculates reputation:

• The submissionTime of a vote.

• A deterministic way of knowing how a user voted in the end, because two votes from the same userID for the same UUID could have equal submission times.

• A new table that stores a videoID alongside the channelID. This would allow for an easier implementation of Temporary channel-specific VIP (for voting only) #285 and enable a channel specific reputation, where a users votes and submissions are prefered for a specifc channel.