add events api endpoint

[lacasera]

This pr adds events api endpoint.

Test PR

1. pull branch
2. make a GET to /api/events?after={$afterDate}&before={$beforeDate}
3. you should a response like

   {
    "results": [
       {
           "id": 593,
           "name": "Et doloribus libero nobis nulla sit animi.",
            "start": "2019-10-03T21:20:40+00:00",
            "end": "2019-10-04T00:20:40+00:00",
            "timezone": "America/Chicago",
            "location": "1322 Lupe Meadow Suite 224\nCheyenneside, MO 75144-8010"
       }
   ]
   }

Issue

28

[lacasera]

@imacrayon reverted changes to package-lock.json

[imacrayon]

Thanks, happy Hacktoberfest!