Add LEADERBOARD MyHits API Call

[MasterCash]

Add functionality for GET /groups/:group_id/likes/for_me

A list of messages others have liked

Responses

200 OK

    {
      "messages": [
        {
          "id": "1234567890",
          "source_guid": "GUID",
          "created_at": 1302623328,
          "user_id": "1234567890",
          "group_id": "1234567890",
          "name": "John",
          "avatar_url": "https://i.groupme.com/123456789",
          "text": "Hello world ☃☃",
          "system": true,
          "favorited_by": [
            "101",
            "66",
            "1234567890"
          ],
          "attachments": [
            {
              "type": "image",
              "url": "https://i.groupme.com/123456789"
            },
            {
              "type": "image",
              "url": "https://i.groupme.com/123456789"
            },
            {
              "type": "location",
              "lat": "40.738206",
              "lng": "-73.993285",
              "name": "GroupMe HQ"
            },
            {
              "type": "split",
              "token": "SPLIT_TOKEN"
            },
            {
              "type": "emoji",
              "placeholder": "☃",
              "charmap": [
                [
                  1,
                  42
                ],
                [
                  2,
                  34
                ]
              ]
            }
          ]
        }
      ]
    }