make the query rate limiting bucket configurable (minute/second) level

[deemoliu]

There are two types of dashboard customers supported by Pinot

1. when opening a dashboard, there will be a sudden increase of QPS sending to Pinot. we'd like to support these query.
2. if the dashboard has a refresh feature and sending queries to Pinot every few seconds, we'd like to rate limit these queries.

Pinot supports query quota and throttling at table/database/application level, which helped when we support dashboard queries. Current the time bucket is configured at second level as below, we proposed to add support for minute level query quota.

{
  "tableName": "pinotTable",
  "quota": {
    "maxQueriesPerSecond": 300
  },
  ...
}