[v3] [influxql] Support `SELECT INTO` clauses

V1.x Influxdb supports writing data to a new measurement or a new database with a SELECT INTO syntax. [See the docs](https://docs.influxdata.com/influxdb/v1/query_language/explore-data/#the-into-clause)

V3 Core should support this functionality as well.

Use the linked InfluxDB v1.x documentation as the behavioral reference for SELECT INTO. Then locate the V3 Core InfluxQL query and write paths and determine how a new measurement or database should be represented. Done means both destinations work with SELECT INTO and coverage verifies the behavior.

Written by the indexing model from the issue text.