[ADAP-548] Make cluster key sorting optional on table creation

[Slanman3755]

resolves dbt-labs/dbt-adapters#735
docs dbt-labs/docs.getdbt.com/#

Problem

Creating a table with a cluster key always adds an order by to the create table statement. This is usually not necessary and should be optional.

Solution

Add a new optional config flag for table creation (order_by_cluster_key) that can enable or disable the addition of the order by statement when a cluster key is present.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX

[Slanman3755]

I copied a generic test for this new feature. I may need help making it more practical. There should probably also be a unit test for this change but I did not see any unit tests already in place for the cluster_by config field that I could easily add to.

[Slanman3755]

Still waiting on feedback for this change.

[github-actions]

This PR has been marked as Stale because it has been open with no activity as of late. If you would like the PR to remain open, please comment on the PR or else it will be closed in 7 days.

[github-actions]

Although we are closing this PR as stale, it can still be reopened to continue development. Just add a comment to notify the maintainers.