Paginate the queries that are sent to df-sql

[jamiehewitt15]

We should paginate the queries that we send to df-sql so that we are not requesting all of the data at once.

To paginate the basic query we can use the following request:

{
  "query": {
    "round": 0
  },
  "sort": {
    "volume": -1
  },
  "limit": 100,
  "offset": 0
}

That will return the first 100 results. To request the next 100 results we have to increase the offset:

{
  "query": {
    "round": 0
  },
  "sort": {
    "volume": -1
  },
  "limit": 100,
  "offset": 100
}