How to: $columnsMs(key, value) - same as $columns but for time series with ms
Example usage:

```sql
$columnsMs(OSName, count(*) c)
FROM requests
INNER JOIN oses USING (OS)
```

Query will be transformed into:

```sql
SELECT
    t,
    groupArray((OSName, c)) AS groupArr
FROM
(
    SELECT
        $timeSeriesMs AS t,
        OSName,
        count(*) AS c
    FROM requests
    INNER JOIN oses USING (OS)
    WHERE ((EventDate >= toDate(1482796627)) AND (EventDate <= toDate(1482853383))) AND ((EventTime >= toDateTime64(1482796627,3)) AND (EventTime <= toDateTime64(1482853383,3)))
    GROUP BY
        t,
        OSName
    ORDER BY
        t,
        OSName
)
GROUP BY t
ORDER BY t
```

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