Karen Aldenderfer

Snowflake: Add support for CONNECT BY

1

### Search before asking - [X] I searched the [issues](https://github.com/sqlfluff/sqlfluff/issues) and found no similar issues. ### What Happened `CONNECT BY` syntax is valid in [Snowflake](https://docs.snowflake.com/en/sql-reference/constructs/connect-by) and is not currently supported...