Make a new /results endpoint

[elijahverdoorn]

Make a new results table

• should have electionId, positionId, winning candidateId

Attach to the current electionId middleware the results data if the election is over - this should prevent issues with people mass-querying the endpoint for the data right after the election ends.

JSON structure sent to the client when requesting all results for a given election should be something like:

{
    electionName: <name>,
    results: [
        {
            positionName: <name>,
            winner: <name>,
            losers: [ <array of names> ]
        }, ...
    ]
}